2001 TUCSON, ARIZONA (TUS)



Tucson lies at the foot of the Catalina Mountains, north of the airport. The area within about 15 miles of the airport station is flat or gently rolling, with many dry washes. The soil is sandy, and vegetation is mostly brush, cacti, and small trees. Rugged mountains encircle the valley. The mountains to the north, east, and south rise to over 5,000 feet above the airport. The western hills and mountains range from 500 to 4,000 feet.

The climate of Tucson is characterized by a long hot season, from April to October. Temperatures above 90 degrees prevail from May through September. Temperatures of 100 degrees or higher average 41 days annually, including 14 days each for June and July, but these extreme temperatures are moderated by low relative humidities. The temperature range is large, averaging 30 degrees or more a day.

More than 50 percent of the annual precipitation falls between July 1 and September 15, and over 20 percent falls from December through March. During the summer, scattered convective or orographic showers and thunderstorms often fill dry washes to overflowing. On occasion, brief, torrential downpours cause destructive flash floods in the Tucson area. Hail rarely occurs in thunderstorms. The December through March precipitation occurs as prolonged rainstorms that replenish the ground water. During these storms, snow often falls on the higher mountains, but snow in Tucson is infrequent, particularly in accumulations exceeding an inch in depth.

From the first of the year, the humidity decreases steadily until the summer thunderstorm season, when it shows a marked increase. From mid–September, the end of the thunderstorm season, the humidity decreases again until late November. Occasionally during the summer, humidities are high enough to produce discomfort, but only for short periods. During the hot season, humidity values sometimes fall below 5 percent.

Tucson lies in the zone receiving more sunshine than any other section of the United States. Cloudless days are commonplace, and average cloudiness is low.

Surface winds are generally light, with no major seasonal changes in velocity or direction. Occasional duststorms occur in areas where the ground has been disturbed. During the spring, winds may briefly be strong enough to cause some damage to trees and buildings. Wind velocities and directions are influenced by the surrounding mountains, and the general slope of the terrain. Usually local winds tend to be in the southeast quadrant during the night and early morning hours, veering to northwest during the day. Highest velocities usually occur with winds from the southwest and east to south.

While dust and haze are frequently visible, their effect on the general clarity of the atmosphere is not great. Visibility is normally high.

Based on the 1951–1980 period, the average first occurrence of 32 degrees Fahrenheit in the fall is November 29 and the average last occurrence in the spring is February 28.

NORMALS, MEANS, AND EXTREMES

TUCSON, AZ (TUS)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 23160

32 07′ 53″ N  110 57′ 19″ W  GRND: 2578  BARO: 2581  MOUNTAIN (UTC + 7)

2001 Tucson, Arizona (TUS)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 63.9 67.8 72.8 81.2 89.9 99.6 99.4 96.8 93.3 84.3 72.7 64.3 82.2
MEAN DAILY MAXIMUM 53 64.6 68.3 73.1 81.4 90.1 99.6 99.0 96.8 94.1 84.6 72.9 65.3 82.5
HIGHEST DAILY MAXIMUM 61 87 92 99 104 108 117 114 112 107 102 93 84 117
YEAR OF OCCURRENCE 1999 1957 1988 1989 2000 1990 1995 1993 2000 1993 1999 1954 JUN 1990
MEAN OF EXTREME MAXS. 53 78.0 81.3 86.3 93.5 100.8 107.9 107.7 104.4 102.1 95.5 84.8 77.6 93.3
NORMAL DAILY MINIMUM 30 38.6 41.0 44.6 50.4 58.0 67.9 73.6 72.1 67.5 56.6 45.6 39.8 54.6
MEAN DAILY MINIMUM 53 38.6 40.9 44.5 50.5 58.4 67.8 73.7 72.2 67.7 56.7 45.1 39.1 54.6
LOWEST DAILY MINIMUM 61 16 20 20 27 38 47 59 61 44 26 24 16 16
YEAR OF OCCURRENCE 1949 1955 1965 1945 1950 1955 1992 1956 1965 1971 1979 1974 DEC 1974
MEAN OF EXTREME MINS. 53 26.6 29.2 32.4 38.9 46.4 56.8 67.0 66.5 58.7 43.5 32.1 27.1 43.8
NORMAL DRY BULB 30 51.3 54.4 58.7 65.8 74.0 83.8 86.6 84.5 80.4 70.4 59.2 52.0 68.4
MEAN DRY BULB 53 51.5 54.6 58.9 66.0 74.3 83.7 86.3 84.5 80.9 70.7 58.9 52.0 68.5
MEAN WET BULB 18 41.8 43.9 46.5 49.5 54.6 59.8 67.2 68.9 63.4 54.7 46.1 41.8 53.2
MEAN DEW POINT 18 29.0 29.9 29.5 29.0 32.6 37.9 55.0 60.0 51.4 40.2 31.9 29.9 38.0
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.0 0.7 4.0 16.8 28.1 29.3 28.6 22.3 7.5 * 0.0 137.3
MAXIMUM 32 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
MINIMUM 32 30 5.9 3.3 1.1 0.0 0.0 0.0 0.0 0.0 0.0 * 1.1 4.7 16.1
MINIMUM 0 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
H/C NORMAL HEATING DEG. DAYS 30 425 302 229 97 7 0 0 0 0 27 188 403 1678
NORMAL COOLING DEG. DAYS 30 0 5 33 121 286 564 670 605 462 194 14 0 2954
RH NORMAL (PERCENT) 30 48 43 37 27 22 21 42 47 42 38 43 50 38
HOUR 05 LST 30 62 58 53 41 35 33 58 64 57 53 56 63 53
HOUR 11 LST 30 40 35 29 21 17 17 34 38 34 31 34 41 31
HOUR 17 LST 30 31 26 22 16 13 13 28 32 28 24 28 34 25
HOUR 23 LST 30 56 49 41 30 24 23 47 52 46 44 49 58 43
S PERCENT POSSIBLE SUNSHINE 52 80 81 86 92 93 92 78 80 87 88 85 79 85
W/O MEAN NO. DAYS WITH:
HEAVY FOG (VISBY 1/4 MI) 61 0.3 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 1.1
THUNDERSTORMS 61 0.4 0.3 0.5 0.7 1.6 2.7 13.7 13.7 5.5 2.0 0.5 0.3 41.9
CLOUDINESS MEAN:
SUNRISE–SUNSET (OKTAS) 1 2.4 0.0 1.6
MIDNIGHT–MIDNIGHT (OKTAS) 1 0.0 1.6
MEAN NO. DAYS WITH:
CLEAR 1 1.0 5.0 12.0 27.0 15.0
PARTLY CLOUDY 1 1.0 3.0 3.0 1.0 2.0
CLOUDY 1 4.0 1.0 1.0
PR MEAN STATION PRESSURE(IN) 29 27.40 27.38 27.32 27.28 27.25 27.25 27.31 27.31 27.30 27.33 27.37 27.40 27.32
MEAN SEA–LEVEL PRES. (IN) 18 30.04 29.98 29.92 29.85 29.78 29.76 29.82 29.84 29.83 29.89 29.98 30.03 29.89
WINDS MEAN SPEED (MPH) 36 7.8 7.9 8.4 8.9 8.7 8.6 8.4 7.8 8.0 8.0 8.0 7.6 8.2
PREVAIL. DIR (TENS OF DEGS) 22 14 14 14 14 14 14 14 14 14 14 14 14 14
MAXIMUM 2–MINUTE:
SPEED (MPH) 6 33 37 33 35 33 38 55 48 38 38 32 32 55
DIR. (TENS OF DEGS) 28 20 20 12 19 09 07 12 11 11 12 12 07
YEAR OF OCCURRENCE 1996 1998 1998 2000 1997 1999 2001 2000 1999 2000 1996 1999 JUL 2001
MAXIMUM 5–SECOND:
SPEED (MPH) 6 40 48 43 46 43 51 60 60 43 53 37 40 60
DIR. (TENS OF DEGS) 27 22 21 25 24 07 07 12 11 26 12 10 07
YEAR OF OCCURRENCE 1996 1998 1998 2001 1997 2001 2001 2000 1998 1996 1996 1998 JUL 2001
PRECIPITATION NORMAL (IN) 30 0.87 0.70 0.72 0.30 0.18 0.20 2.37 2.19 1.67 1.06 0.67 1.07 12.00
MAXIMUM MONTHLY (IN) 61 4.81 3.20 2.26 1.66 1.11 1.56 6.17 7.93 5.11 4.98 1.90 5.02 7.93
YEAR OF OCCURRENCE 1993 1998 1952 1951 1992 2000 1981 1955 1964 1983 1952 1965 AUG 1955
MINIMUM MONTHLY (IN) 61 T 0.00 0.00 0.00 0.00 0.00 0.04 0.23 0.00 0.00 0.00 0.00 0.00
YEAR OF OCCURRENCE 1970 1972 1956 1972 1974 1983 1995 1976 1953 1982 1980 1981 JUN 1983
MAXIMUM IN 24 HOURS (IN) 61 1.46 1.49 1.19 1.28 0.89 1.27 3.93 2.48 3.05 3.58 1.86 2.12 3.93
YEAR OF OCCURRENCE 1993 1942 1952 1999 1943 1954 1958 1961 1964 1983 1968 1994 JUL 1958
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 4.8 3.6 4.3 2.0 1.7 2.0 10.6 9.5 5.6 3.2 3.3 5.0 55.6
PRECIPITATION 1.00 30 0.0 0.1 0.0 0.0 0.0 0.0 0.5 0.3 0.4 0.3 * 0.1 1.7
SNOWFALL NORMAL (IN) 30 0.3 0.3 0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.* 0.4 1.4
MAXIMUM MONTHLY (IN) 61 4.7 3.9 5.7 2.0 T 0.0 T T T T 6.4 6.8 6.8
YEAR OF OCCURRENCE 1987 1965 1964 1976 1992 1995 1995 1996 1991 1958 1971 DEC 1971
MAXIMUM IN 24 HOURS (IN) 60 4.3 3.9 5.7 2.0 T 0.0 T T T T 6.4 6.8 6.8
YEAR OF OCCURRENCE 1987 1965 1964 1976 1992 1995 1995 1990 1991 1958 1971 DEC 1971
MAXIMUM SNOW DEPTH (IN) 52 1 4 5 0 0 0 0 0 0 0 1 5 5
YEAR OF OCCURRENCE 1987 1965 1964 1958 1971 DEC 1971
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 0.1 0.2 0.1 0.* 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5

2001 Tucson, Arizona (TUS)

PRECIPITATION (inches) 2001 TUCSON, AZ (TUS)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 0.00 0.00 0.01 0.00 0.24 0.68 3.49 2.93 1.09 4.51 1.30 0.61 14.86
1973 0.06 1.60 2.20 0.02 0.09 0.50 1.74 0.54 T 0.00 0.47 0.00 7.22
1974 0.93 T 0.55 T 0.00 0.01 4.44 1.04 1.69 2.12 0.81 0.33 11.92
1975 0.36 0.13 0.95 0.27 0.11 0.00 2.38 0.32 1.26 T 0.34 0.52 6.64
1976 0.06 0.53 0.38 0.57 0.23 0.10 1.18 0.23 1.68 0.37 0.48 0.47 6.28
1977 1.83 0.04 0.74 0.43 0.08 0.06 0.76 0.80 1.41 2.36 0.33 1.33 10.17
1978 2.05 1.75 0.89 0.01 0.61 0.22 0.78 1.59 1.66 1.86 1.58 2.73 15.73
1979 2.94 0.42 0.64 0.04 0.67 0.53 2.04 2.60 0.02 0.33 0.01 0.15 10.39
1980 0.73 2.90 1.22 0.08 T 0.23 1.78 1.95 2.93 0.22 0.00 0.19 12.23
1981 1.29 0.71 1.98 0.56 0.26 0.16 6.17 0.80 1.10 0.06 0.61 0.00 13.70
1982 1.56 0.06 1.26 0.05 0.51 0.13 2.13 2.51 2.69 0.00 1.30 1.59 13.79
1983 1.70 0.94 1.28 0.14 T 0.00 1.98 4.24 4.28 4.98 1.71 0.61 21.86
1984 0.62 0.00 0.00 0.36 0.06 1.05 2.92 4.19 1.81 0.77 0.45 3.30 15.53
1985 1.71 1.08 0.20 0.45 T 0.07 3.14 1.97 1.13 2.03 0.95 0.15 12.88
1986 0.98 1.13 1.30 T 0.44 0.06 1.82 3.56 0.31 0.50 0.42 1.28 11.80
1987 0.59 1.64 0.83 0.80 0.74 0.16 0.37 2.79 2.30 0.34 0.44 1.50 12.50
1988 0.41 0.53 0.35 1.15 0.02 0.15 1.69 3.64 0.80 2.09 0.75 0.05 11.63
1989 0.96 0.23 0.62 0.00 0.13 0.06 1.42 0.90 0.02 1.84 0.12 0.18 6.48
1990 0.96 0.71 0.38 0.10 0.03 0.64 5.45 2.70 1.63 0.58 0.23 1.54 14.95
1991 1.15 0.91 1.40 0.00 0.00 0.20 0.44 2.17 1.54 0.73 0.80 1.44 10.78
1992 1.21 1.80 2.12 0.19 1.11 0.07 0.93 4.55 0.94 0.03 T 3.47 16.42
1993 4.81 1.50 0.49 0.00 0.59 0.02 0.26 4.93 0.46 0.81 0.98 0.14 14.99
1994 0.02 1.03 1.14 0.04 0.52 0.26 0.41 0.45 1.46 0.76 1.83 3.71 11.63
1995 1.41 1.32 0.54 0.28 0.15 T 0.04 3.71 2.29 0.36 0.86 0.22 11.18
1996 0.01 0.82 0.32 T 0.00 T 1.88 1.87 3.68 1.74 0.19 T 10.51
1997 0.93 0.67 0.02 0.47 0.44 0.02 0.51 2.32 1.43 0.38 0.49 2.88 10.56
1998 0.17 3.20 1.64 0.39 T 0.00 4.06 1.70 1.10 0.24 0.67 0.45 13.62
1999 0.01 T T 1.34 0.00 0.16 4.15 3.05 0.97 T 0.00 T 9.68
2000 0.10 0.19 0.93 T 0.00 1.56 1.59 1.70 0.02 4.98 1.36 T 12.43
2001 1.24 0.46 0.88 0.84 0.24 0.54 1.09 0.85 0.33 0.69 0.05 0.60 7.81
POR=102 YRS 0.87 0.85 0.75 0.35 0.22 0.28 2.11 2.19 1.31 0.75 0.69 0.51 10.88

2001 Tucson, Arizona (TUS)

AVERAGE TEMPERATURE (F) 2001 TUCSON, AZ (TUS)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 50.4 55.8 65.0 65.8 72.3 81.6 86.6 82.9 78.6 66.5 53.0 49.0 67.3
1973 47.6 53.4 51.6 59.7 73.0 81.4 84.3 84.7 79.6 70.7 58.4 52.3 66.4
1974 50.2 51.9 60.1 66.1 74.3 86.9 83.5 83.0 77.8 69.1 57.5 47.0 67.3
1975 49.8 50.7 55.3 57.9 69.8 80.5 84.2 85.8 80.0 69.5 59.3 53.0 66.3
1976 52.6 58.4 58.2 64.8 74.5 83.4 83.9 85.3 77.7 67.8 60.0 52.2 68.2
1977 50.7 56.9 55.7 67.0 70.8 84.7 87.0 86.4 82.0 73.3 61.7 56.9 69.4
1978 53.1 53.6 61.8 65.2 73.1 85.8 88.1 84.7 80.9 73.8 58.5 49.7 69.0
1979 48.4 53.8 56.4 65.6 72.2 83.1 87.5 83.4 84.2 73.0 56.6 55.0 68.3
1980 54.3 57.9 57.5 65.6 71.5 84.9 88.6 84.6 80.5 69.6 59.5 58.1 69.4
1981 54.8 57.1 57.1 69.1 73.4 86.1 85.2 86.4 80.7 68.1 62.2 55.0 69.6
1982 50.7 54.7 57.7 66.1 72.3 80.5 84.8 83.9 79.2 67.0 57.7 50.1 67.1
1983 52.9 53.8 57.3 60.4 73.8 81.6 86.9 84.0 82.2 69.5 57.4 53.5 67.8
1984 51.8 53.7 60.5 64.0 79.9 83.1 84.2 82.9 81.5 66.3 57.8 51.5 68.1
1985 50.3 53.1 58.7 68.7 75.9 85.8 87.5 86.1 77.4 70.0 58.0 52.9 68.7
1986 58.7 56.9 63.8 69.0 76.8 86.6 85.5 86.0 79.0 69.6 59.8 52.3 70.3
1987 50.9 54.2 57.9 70.1 74.3 86.3 87.4 85.1 79.9 75.1 58.9 50.3 69.2
1988 53.0 59.4 61.4 68.0 76.4 86.8 87.9 85.9 80.4 75.3 59.2 51.9 70.5
1989 49.9 58.2 65.0 73.8 77.4 85.4 90.0 86.6 84.5 71.1 61.7 53.0 71.4
1990 51.8 52.8 61.8 69.7 75.2 88.7 85.0 82.6 82.2 73.1 61.6 51.1 69.6
1991 52.3 59.8 55.4 65.2 73.5 81.5 87.5 86.6 80.7 74.0 58.9 54.3 69.1
1992 51.6 57.3 59.4 70.8 76.7 84.5 86.8 85.1 83.6 74.2 56.1 51.4 69.8
1993 55.2 54.0 61.3 68.6 78.1 85.0 88.0 85.5 81.4 72.6 58.8 53.4 70.2
1994 53.7 55.2 62.9 68.6 75.6 89.2 90.4 90.3 84.2 70.5 56.7 53.9 70.9
1995 52.6 60.7 61.2 64.8 72.6 83.3 88.4 87.3 82.9 72.4 63.1 54.0 70.3
1996 53.6 58.8 61.1 68.9 79.0 87.4 88.6 86.4 77.7 70.4 61.0 53.7 70.6
1997 52.4 53.6 64.8 65.8 79.7 83.1 88.0 85.8 84.2 70.0 60.7 48.6 69.7
1998 53.2 50.8 57.9 61.4 72.9 81.8 86.5 86.5 82.6 70.7 60.5 52.0 68.1
1999 53.6 56.9 61.4 62.3 74.7 83.8 84.0 85.2 81.8 74.7 65.4 51.3 69.6
2000 55.0 57.4 58.8 70.3 80.2 84.5 88.2 84.9 84.8 68.2 52.8 54.3 70.0
2001 49.7 52.8 60.2 66.6 79.3 85.6 86.2 85.9 84.4 73.2 62.9 49.4 69.7
POR=102 YRS 50.7 53.7 58.2 65.1 73.3 82.5 86.1 84.2 80.2 69.8 58.4 51.5 67.8

REFERENCE NOTES:

PAGE 1:

THE TEMPERATURE GRAPH SHOWS NORMAL MAXIMUM AND NORMAL MINIMUM DAILY TEMPERATURES (SOLID CURVES) AND THE ACTUAL DAILY HIGH AND LOW TEMPERATURES (VERTICAL BARS).

PAGE 2 AND 3:

H/C INDICATES HEATING AND COOLING DEGREE DAYS.

RH INDICATES RELATIVE HUMIDITY

W/O INDICATES WEATHER AND OBSTRUCTIONS

S INDICATES SUNSHINE.

PR INDICATES PRESSURE.

CLOUDINESS ON PAGE 3 IS THE SUM OF THE CEILOMETER AND SATELLITE DATA NOT TO EXCEED EIGHT EIGHTHS (OKTAS).

GENERAL:

T INDICATES TRACE PRECIPITATION, AN AMOUNT GREATER THAN ZERO BUT LESS THAN THE LOWEST REPORTABLE VALUE.

+ INDICATES THE VALUE ALSO OCCURS ON EARLIER DATES.

BLANK ENTRIES DENOTE MISSING OR UNREPORTED DATA.

NORMALS ARE 30–YEAR AVERAGES (1961–1990).

ASOS INDICATES AUTOMATED SURFACE OBSERVING SYSTEM.

PM INDICATES THE LAST DAY OF THE PREVIOUS MONTH.

POR (PERIOD OF RECORD) BEGINS WITH THE JANUARY DATA MONTH AND IS THE NUMBER OF YEARS USED TO COMPUTE THE MEAN. INDIVIDUAL MONTHS WITHIN THE POR MAY BE MISSING.

WHEN THE POR FOR A NORMAL IS LESS THAN 30 YEARS, THE NORMAL IS PROVISIONAL AND IS BASED ON THE NUMBER OF YEARS INDICATED.

0.* OR * INDICATES THE VALUE OR MEAN–DAYS–WITH IS BETWEEN 0.00 AND 0.05.

CLOUDINESS FOR ASOS STATIONS DIFFERS FROM THE NON–ASOS OBSERVATION TAKEN BY A HUMAN OBSERVER. ASOS STATION CLOUDINESS IS BASED ON TIME–AVERAGED CEILOMETER DATA FOR CLOUDS AT OR BELOW 12,000 FEET AND ON SATELLITE DATA FOR CLOUDS ABOVE 12,000 FEET.

THE NUMBER OF DAYS WITH CLEAR, PARTLY CLOUDY, AND CLOUDY CONDITIONS FOR ASOS STATIONS IS THE SUM OF THE CEILOMETER AND SATELLITE DATA FOR THE SUNRISE TO SUNSET PERIOD.

GENERAL CONTINUED:

CLEAR INDICATES 0–2 OKTAS, PARTLY CLOUDY INDICATES 3–6 OKTAS, AND CLOUDY INDICATES 7 OR 8 OKTAS. WHEN AT LEAST ONE OF THE ELEMENTS (CEILOMETER OR SATELLITE) IS MISSING, THE DAILY CLOUDINESS IS NOT COMPUTED.

WIND DIRECTION IS RECORDED IN TENS OF DEGREES (2 DIGITS) CLOCKWISE FROM TRUE NORTH. "00" INDICATES CALM. "36" INDICATES TRUE NORTH.

RESULTANT WIND IS THE VECTOR AVERAGE OF THE SPEED AND DIRECTION.

AVERAGE TEMPERATURE IS THE SUM OF THE MEAN DAILY MAXIMUM AND MINIMUM TEMPERATURE DIVIDED BY 2.

SNOWFALL DATA COMPRISE ALL FORMS OF FROZEN PRECIPITATION, INCLUDING HAIL.

A HEATING (COOLING) DEGREE DAY IS THE DIFFERENCE BETWEEN THE AVERAGE DAILY TEMPERATURE AND 65 F.

DRY BULB IS THE TEMPERATURE OF THE AMBIENT AIR.

DEW POINT IS THE TEMPERATURE TO WHICH THE AIR MUST BE COOLED TO ACHIEVE 100 PERCENT RELATIVE HUMIDITY.

WET BULB IS THE TEMPERATURE THE AIR WOULD HAVE IF THE MOISTURE CONTENT WAS INCREASED TO 100 PERCENT RELATIVE HUMIDITY.

ON JULY 1, 1996, THE NATIONAL WEATHER SERVICE BEGAN USING THE "METAR" OBSERVATION CODE THAT WAS ALREADY EMPLOYED BY MOST OTHER NATIONS OF THE WORLD. THE MOST NOTICEABLE DIFFERENCE IN THIS ANNUAL PUBLICATION WILL BE THE CHANGE IN UNITS FROM TENTHS TO EIGHTS (OKTAS) FOR REPORTING THE AMOUNT OF SKY COVER.

2001 Tucson, Arizona (TUS)

HEATING DEGREE DAYS (base 65 F) 2001 TUCSON, AZ (TUS)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972–73 0 0 0 96 358 489 533 320 410 174 19 0 2399
1973–74 0 0 0 23 216 390 451 362 161 49 5 0 1657
1974–75 0 0 0 53 218 552 465 393 299 217 29 0 2226
1975–76 0 0 0 38 191 365 378 180 221 88 5 0 1466
1976–77 0 0 0 45 178 390 435 221 287 65 9 0 1630
1977–78 0 0 0 1 117 242 365 313 144 64 24 0 1270
1978–79 0 0 0 15 213 470 511 311 260 76 20 0 1876
1979–80 0 0 0 26 252 302 323 202 227 84 3 0 1419
1980–81 0 0 0 66 197 210 310 220 244 31 0 0 1278
1981–82 0 0 0 34 106 304 437 291 223 46 10 0 1451
1982–83 0 0 0 41 211 456 371 309 239 168 6 0 1801
1983–84 0 0 0 0 232 348 402 323 140 110 0 0 1555
1984–85 0 0 0 49 221 413 448 328 200 41 0 0 1700
1985–86 0 0 0 9 217 369 193 244 117 22 6 0 1177
1986–87 0 0 0 11 154 387 429 299 225 24 0 0 1529
1987–88 0 0 0 0 188 452 366 171 161 46 12 0 1396
1988-89 0 0 0 0 220 402 461 199 82 9 4 0 1377
1989-90 0 0 0 25 107 361 402 340 156 16 3 0 1410
1990-91 0 0 0 5 152 427 384 140 296 47 3 0 1454
1991–92 0 0 0 56 195 325 408 215 169 24 0 0 1392
1992-93 0 0 0 0 261 418 298 299 129 28 0 0 1433
1993–94 0 0 0 5 186 355 345 272 94 42 0 0 1299
1994–95 0 0 0 24 255 335 377 123 143 84 17 0 1358
1995–96 0 0 0 3 64 332 344 173 135 23 0 0 1074
1996–97 0 0 0 91 147 346 386 315 66 77 0 0 1428
1997–98 0 0 0 52 146 502 360 392 232 153 3 0 1840
1998–99 0 0 0 20 136 398 346 220 126 155 7 0 1408
1999–00 0 0 0 0 83 416 308 217 186 26 0 0 1236
2000–01 0 0 0 60 357 323 470 335 178 95 1 0 1819
2001– 0 0 0 0 134 479

2001 Tucson, Arizona (TUS)

COOLING DEGREE DAYS (base 65 F) 2001 TUCSON, AZ (TUS)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 0 1 82 82 236 506 678 563 414 150 1 0 2713
1973 0 0 0 21 272 495 603 615 445 206 26 2 2685
1974 0 0 18 87 301 664 581 564 387 185 1 0 2788
1975 0 0 4 11 184 471 604 651 458 182 27 0 2592
1976 2 0 14 89 306 557 597 636 386 139 34 0 2760
1977 0 0 5 133 198 597 691 669 517 266 23 0 3099
1978 0 0 54 76 283 630 721 616 483 293 28 0 3184
1979 0 0 1 101 249 551 706 576 580 282 6 0 3052
1980 0 4 1 109 211 606 742 615 474 216 37 3 3018
1981 0 8 4 159 267 639 633 670 476 137 27 2 3022
1982 0 4 4 82 244 471 622 594 437 112 0 0 2570
1983 0 0 8 36 288 503 688 600 523 145 10 0 2801
1984 0 0 6 87 469 549 601 562 503 96 12 0 2885
1985 0 1 7 159 345 633 704 660 379 173 14 0 3075
1986 2 23 88 150 378 653 643 657 431 158 3 0 3186
1987 0 2 12 184 297 644 702 630 452 325 12 0 3260
1988 2 13 58 142 374 658 716 657 471 327 51 1 3470
1989 0 16 89 281 397 619 780 676 592 221 16 0 3687
1990 0 6 63 164 327 719 625 553 522 262 56 0 3297
1991 0 1 6 58 274 501 703 675 479 345 21 0 3063
1992 0 0 4 204 372 590 683 627 563 291 1 0 3335
1993 1 0 22 142 413 604 721 641 500 250 11 3 3308
1994 0 4 34 156 332 733 794 788 584 203 11 0 3639
1995 0 8 31 85 261 558 733 698 544 241 12 0 3171
1996 0 1 24 148 440 679 740 670 387 266 33 2 3390
1997 0 2 65 105 462 549 718 651 581 212 26 0 3371
1998 1 0 19 54 255 512 672 671 536 203 9 1 2933
1999 0 1 18 83 318 573 598 635 512 306 103 1 3148
2000 3 1 1 194 479 595 725 624 599 164 0 0 3385
2001 0 0 37 150 450 623 667 655 586 265 79 0 3512

2001 Tucson, Arizona (TUS)

SNOWFALL (inches) 2001 TUCSON, AZ (TUS)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972–73 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1973–74 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 T 0.0 0.0 0.0 0.4
1974–75 0.0 0.0 0.0 0.0 0.0 T 0.0 T 0.5 0.0 0.0 0.0 0.5
1975–76 0.0 0.0 0.0 0.0 T T 0.0 0.0 3.8 2.0 0.0 0.0 5.8
1976–77 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1977–78 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1978–79 0.0 0.0 0.0 0.0 0.0 T 1.2 0.0 0.0 0.0 0.0 0.0 1.2
1979–80 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T
1980–81 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T
1981–82 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 T 0.0 0.0 0.0 T
1982–83 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 0.0 T
1983–84 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1984–85 0.0 0.0 0.0 0.0 0.0 T 0.0 2.2 0.0 0.0 0.0 0.0 2.2
1985–86 0.0 0.0 0.0 0.0 0.0 T 0.0 T 0.0 0.0 0.0 0.0 T
1986–87 0.0 0.0 0.0 0.0 0.0 0.0 4.7 0.0 T 0.0 0.0 0.0 4.7
1987–88 0.0 0.0 0.0 0.0 0.0 3.6 0.0 0.0 0.0 0.0 0.0 0.0 3.6
1988-89 0.0 0.0 0.0 0.0 0.0 T 0.0 T 0.0 0.0 0.0 0.0 T
1989-90 0.0 0.0 0.0 0.0 0.0 0.0 2.7 2.3 0.0 T 0.0 0.0 5.0
1990-91 0.0 T T 0.0 0.0 0.6 0.0 T 0.3 0.0 0.0 0.0 0.9
1991–92 0.0 0.0 0.0 T 0.0 T 0.0 0.0 T 0.0 T 0.0 T
1992-93 0.0 T 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T
1993–94 0.0 T 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1994–95 0.0 0.0 0.0 0.0 T 0.0 0.0 T 0.0 0.0 0.0 0.0 T
1995–96 T T 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T
1996–97 0.0 0.0 T 0.0 0.0 0.0 T 0.0 0.0 T 0.0 0.0 T
1997–98 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 T T 0.0 0.0 T
1998–99 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T 0.0 0.0 T
1999–00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
2000–01 0.0 0.0 0.0 0.0 0.0 0.0 T T 0.0 0.0 0.0 0.0 T
2001– 0.0 0.0 0.0 0.0 0.0 T
POR=60 YRS T T T T 0.1 0.3 0.3 0.2 0.2 0.1 T 0.0 1.2



User Contributions:

Comment about this article, ask questions, or add new information about this topic:

CAPTCHA


2001 Tucson, Arizona (TUS) forum