2001 SAN ANTONIO, TEXAS (SAT)



The city of San Antonio is located in the south–central portion of Texas on the Balcones escarpment. Northwest of the city, the terrain slopes upward to the Edwards Plateau and to the southeast it slopes downward to the Gulf Coastal Plains. Soils are blackland clay and silty loam on the Plains and thin limestone soils on the Edwards Plateau.

The location of San Antonio on the edge of the Gulf Coastal Plains is influenced by a modified subtropical climate, predominantly continental during the winter months and marine during the summer months. Temperatures range from 50 degrees in January to the middle 80s in July and August. While the summer is hot, with daily temperatures above 90 degrees over 80 percent of the time, extremely high temperatures are rare. Mild weather prevails during much of the winter months, with below–freezing temperatures occurring on an average of about 20 days each year.

San Antonio is situated between a semi–arid area to the west and the coastal area of heavy precipitation to the east. The normal annual rainfall of nearly 28 inches is sufficient for the production of most crops. Precipitation is fairly well distributed throughout the year with the heaviest amounts occurring during May and September. The precipitation from April through September usually occurs from thunderstorms. Large amounts of precipitation may fall during short periods of time. Most of the winter precipitation occurs as light rain or drizzle. Thunderstorms and heavy rains have occurred in all months of the year. Hail of damaging intensity seldom occurs but light hail is frequent with the springtime thunderstorms. Measurable snow occurs only once in three or four years. Snowfall of 2 to 4 inches occurs about every ten years.

Northerly winds prevail during most of the winter, and strong northerly winds occasionally occur during storms called northers. Southeasterly winds from the Gulf of Mexico also occur frequently during winter and are predominant in summer.

Since San Antonio is located only 140 miles from the Gulf of Mexico, tropical storms occasionally affect the city with strong winds and heavy rains. One of the fastest winds recorded, 74 mph, occurred as a tropical storm moved inland east of the city in August 1942.

Relative humidity is above 80 percent during the early morning hours most of the year, dropping to near 50 percent in the late afternoon.

San Antonio has about 50 percent of the possible amount of sunshine during the winter months and more than 70 percent during the summer months. Skies are clear to partly cloudy more than 60 percent of the time and cloudy less than 40 percent. Air carried over San Antonio by southeasterly winds is lifted orographically, causing low stratus clouds to develop frequently during the later part of the night. These clouds usually dissipate around noon, and clear skies prevail a high percentage of the time during the afternoon.

The first occurrence of 32 degrees Fahrenheit is in late November and the average last occurrence is in early March.

NORMALS, MEANS, AND EXTREMES

SAN ANTONIO, TX (SAT)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 12921

29 31′ 58″ N  98 27′ 49″ W  GRND: 818  BARO: 821  CENTRAL (UTC + 6)

2001 San Antonio, Texas (SAT)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 60.8 65.7 73.5 80.3 85.3 91.8 95.0 95.3 89.3 81.7 71.9 63.5 79.5
MEAN DAILY MAXIMUM 54 61.9 66.5 73.4 80.4 86.0 91.9 95.1 95.3 89.9 81.9 71.2 64.3 79.8
HIGHEST DAILY MAXIMUM 60 89 100 100 101 103 107 106 108 111 99 94 90 111
YEAR OF OCCURRENCE 1971 1996 1991 1996 1989 1998 1989 1986 2000 1991 1988 1955 SEP 2000
MEAN OF EXTREME MAXS. 54 79.6 83.4 88.3 91.6 94.4 97.9 100.1 100.4 97.5 92.0 85.2 80.2 90.9
NORMAL DAILY MINIMUM 30 37.9 41.3 49.7 58.4 65.7 72.6 75.0 74.5 69.2 58.8 48.8 40.8 57.7
MEAN DAILY MINIMUM 54 39.4 43.4 50.0 58.3 66.1 72.1 74.4 73.8 69.2 59.2 48.7 41.6 58.0
LOWEST DAILY MINIMUM 60 0 6 19 31 43 53 62 61 41 27 21 6 0
YEAR OF OCCURRENCE 1949 1951 1980 1987 1984 1964 1967 1992 1942 1993 1976 1989 JAN 1949
MEAN OF EXTREME MINS. 54 22.3 26.5 31.3 40.7 52.1 62.5 68.8 67.5 55.5 42.2 30.8 24.6 43.7
NORMAL DRY BULB 30 49.3 53.5 61.7 69.3 75.5 82.2 85.0 84.9 79.3 70.2 60.4 52.2 68.6
MEAN DRY BULB 54 50.8 54.9 61.7 69.2 76.1 82.0 84.8 84.5 79.5 70.5 60.0 52.9 68.9
MEAN WET BULB 18 45.9 49.8 54.6 61.2 68.8 73.1 73.8 73.7 70.0 63.0 51.5 47.7 61.1
MEAN DEW POINT 18 39.2 43.3 48.0 55.0 64.5 69.1 69.0 68.9 64.9 57.8 46.3 41.4 55.6
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.2 0.8 2.1 7.7 20.7 27.4 28.0 16.8 4.1 0.1 0.0 107.9
MAXIMUM 32 30 0.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.6
MINIMUM 32 30 9.5 5.7 1.7 * 0.0 0.0 0.0 0.0 0.0 0.0 1.8 6.6 25.3
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 30 494 332 167 32 0 0 0 0 0 30 180 409 1644
NORMAL COOLING DEG. DAYS 30 8 10 64 161 326 516 620 617 429 191 42 12 2996
RH NORMAL (PERCENT) 30 67 65 63 66 70 69 65 65 68 67 68 68 67
HOUR 00 LST 30 74 74 72 75 80 79 74 74 78 77 78 76 76
HOUR 06 LST 30 79 80 79 82 87 87 87 86 86 84 82 80 83
HOUR 12 LST 30 58 56 54 57 60 58 53 52 56 55 56 57 56
HOUR 18 LST 30 55 50 47 50 55 52 46 46 52 52 56 56 51
S PERCENT POSSIBLE SUNSHINE 53 47 50 57 56 56 67 74 74 67 64 54 48 60
W/O MEAN NO. DAYS WITH:
HEAVY FOG(VISBY 1/4 MI) 60 5.0 2.8 2.4 1.3 0.8 0.1 0.1 0.1 0.2 1.4 2.9 4.3 21.4
THUNDERSTORMS 60 1.0 1.6 2.7 4.0 6.6 4.8 3.6 4.3 4.1 2.7 1.7 0.9 38.0
CLOUDINESS MEAN:
SUNRISE-SUNSET (OKTAS) 1 5.0 3.0
MIDNIGHT-MIDNIGHT (OKTAS)
MEAN NO. DAYS WITH:
CLEAR 1 4.0 5.0 8.0 6.0 12.0
PARTLY CLOUDY 1 1.0 4.0 2.0 11.0 5.0
CLOUDY 1 1.0 6.0 3.0 2.0
PR MEAN STATION PRESSURE(IN) 29 29.28 29.24 29.14 29.11 29.07 29.11 29.16 29.15 29.15 29.20 29.23 29.27 29.18
MEAN SEA-LEVEL PRES. (IN) 18 30.12 30.06 30.00 29.92 29.89 29.91 29.97 29.96 29.96 30.02 30.07 30.12 30.00
WINDS MEAN SPEED (MPH) 39 8.5 9.0 9.6 9.7 9.6 9.6 9.1 8.2 8.0 8.2 8.3 8.1 8.8
PREVAIL. DIR (TENS OF DEGS) 24 36 02 14 14 14 14 16 16 16 16 02 36 16
MAXIMUM 2-MINUTE:
SPEED (MPH) 59 39 32 36 38 46 38 39 39 43 35 32 32 46
DIR. (TENS OF DEGS) 29 15 01 31 28 09 30 11 25 31 31 02 28
YEAR OF OCCURRENCE 1999 2000 1996 1997 1997 1999 1996 2000 1996 2001 2000 2000 MAY 1997
MAXIMUM 5-SECOND:
SPEED (MPH) 59 46 40 47 51 55 44 54 45 71 40 39 43 71
DIR. (TENS OF DEGS) 28 26 32 29 29 08 29 11 26 29 29 33 26
YEAR OF OCCURRENCE 1999 1998 1998 1997 1997 1999 1996 2000 1996 2001 2000 2000 SEP 1996
PRECIPITATION NORMAL (IN) 30 1.71 1.81 1.52 2.50 4.22 3.81 2.16 2.54 3.41 3.17 2.62 1.51 30.98
MAXIMUM MONTHLY (IN) 59 8.52 6.43 6.12 9.32 12.85 11.95 8.29 11.14 15.78 18.07 8.58 13.96 18.07
YEAR OF OCCURRENCE 1968 1965 1992 1957 1987 1986 1990 1974 1946 1998 2000 1991 OCT 1998
MINIMUM MONTHLY (IN) 59 T 0.01 0.03 0.05 0.17 0.01 T 0.00 0.05 T T 0.03 0.00
YEAR OF OCCURRENCE 1996 1999 1961 1998 1961 1967 1993 1952 1999 1952 1966 1950 AUG 1952
MAXIMUM IN 24 HOURS (IN) 59 3.18 2.44 3.59 4.88 6.53 6.30 6.97 5.57 7.28 13.35 4.87 6.90 13.35
YEAR OF OCCURRENCE 1968 1986 1992 1977 1972 1986 1958 1950 1973 1998 1977 1991 OCT 1998
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 7.7 7.0 7.1 7.3 8.9 6.4 4.8 5.1 7.2 6.8 6.6 7.1 82.0
PRECIPITATION 1.00 30 0.4 0.4 0.4 0.8 1.2 1.2 0.7 0.8 0.8 1.1 0.7 0.3 8.8
SNOWFALL NORMAL (IN) 30 0.6 0.3 T 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.* 0.9
MAXIMUM MONTHLY (IN) 56 15.9 3.5 T T T T 0.0 0.0 0.0 T 0.3 0.2 15.9
YEAR OF OCCURRENCE 1985 1966 1994 1993 1993 1989 1993 1957 1964 JAN 1985
MAXIMUM IN 24 HOURS (IN) 56 13.2 3.5 T T T T 0.0 0.0 0.0 T 0.3 0.2 13.2
YEAR OF OCCURRENCE 1985 1966 1994 1993 1993 1989 1993 1957 1964 JAN 1985
MAXIMUM SNOW DEPTH (IN) 50 9 3 0 0 0 0 0 0 0 0 0 0 9
YEAR OF OCCURRENCE 1985 1966 JAN 1985
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2

2001 San Antonio, Texas (SAT)

PRECIPITATION (inches) 2001 SAN ANTONIO, TX (SAT)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 1.35 0.40 0.13 1.94 11.24 2.86 3.13 4.24 1.40 1.99 2.37 0.44 31.49
1973 2.77 2.76 1.58 5.41 2.73 10.44 6.91 1.29 13.09 4.85 0.29 0.16 52.28
1974 1.36 0.04 0.94 2.18 4.28 1.02 1.28 11.14 3.85 4.09 5.39 1.43 37.00
1975 1.04 3.30 0.52 2.69 6.91 4.60 1.06 1.28 0.51 2.25 0.03 1.48 25.67
1976 0.56 0.13 1.20 5.67 5.80 1.61 5.39 2.09 3.79 8.48 2.46 1.95 39.13
1977 3.10 0.91 0.88 8.80 1.62 2.26 0.10 0.06 2.11 3.47 6.01 0.32 29.64
1978 0.68 1.76 1.71 3.62 2.45 3.96 1.43 4.97 8.86 0.55 4.91 1.09 35.99
1979 4.07 1.38 3.55 5.34 1.98 5.59 7.38 2.09 0.86 0.11 1.43 2.86 36.64
1980 0.72 0.74 0.98 1.67 6.42 0.52 0.26 2.64 5.05 1.09 3.53 0.61 24.23
1981 2.06 0.96 1.96 2.21 6.43 8.71 0.25 2.41 1.36 8.61 0.72 0.69 36.37
1982 0.72 1.28 0.69 1.23 6.42 1.37 0.14 0.55 0.87 2.84 4.54 2.31 22.96
1983 1.48 1.54 3.89 0.18 4.37 1.27 2.43 2.00 3.86 1.64 3.06 0.39 26.11
1984 1.87 0.54 1.91 0.11 3.76 1.40 T 3.04 1.06 5.94 2.91 3.41 25.95
1985 2.68 1.91 2.85 3.27 2.47 8.20 5.80 0.45 4.80 3.91 5.00 0.09 41.43
1986 0.76 2.52 0.35 0.60 6.29 11.95 0.05 1.86 2.83 6.58 1.83 7.11 42.73
1987 1.13 4.78 1.10 1.48 12.85 7.69 1.21 0.33 2.24 0.44 2.53 2.18 37.96
1988 0.39 0.92 0.86 1.23 0.41 5.50 5.58 1.98 0.83 0.62 0.02 0.67 19.01
1989 2.96 0.29 1.24 2.55 0.33 3.96 0.69 0.48 1.54 5.81 1.93 0.36 22.14
1990 1.17 2.68 5.17 4.52 3.28 1.18 8.29 1.30 3.70 3.71 3.11 0.20 38.31
1991 5.08 2.34 1.06 4.91 5.30 2.28 2.23 2.84 1.42 0.87 0.47 13.96 42.76
1992 5.64 6.37 6.12 3.03 8.15 5.67 1.28 2.56 1.12 0.92 3.47 2.16 46.49
1993 1.31 3.72 1.56 1.81 12.47 6.43 T 0.01 0.52 3.07 0.66 0.44 32.00
1994 1.55 0.64 5.06 2.21 7.01 1.66 0.50 2.54 5.52 9.75 0.71 3.28 40.43
1995 0.28 1.19 1.58 1.07 5.36 4.81 0.71 2.03 4.49 0.23 0.82 0.09 22.66
1996 T 0.70 0.30 0.89 1.26 2.12 1.31 2.86 3.66 0.36 2.79 1.56 17.81
1997 0.44 2.44 2.24 5.72 3.91 7.30 T 0.62 1.86 4.08 1.76 3.55 33.92
1998 3.21 3.37 2.85 0.05 0.34 0.81 0.21 7.78 1.57 18.07 3.40 0.39 42.05
1999 0.04 0.01 3.48 0.91 2.78 3.37 1.80 2.11 0.05 1.29 0.05 0.52 16.41
2000 1.40 2.20 0.91 1.22 3.59 7.61 0.34 0.16 2.65 5.62 8.58 1.57 35.85
2001 2.85 0.70 2.77 2.29 2.48 3.39 0.50 7.83 4.05 2.06 4.37 3.43 36.72
POR=117 YRS 1.66 1.73 1.77 2.83 3.65 3.16 1.96 2.39 3.10 2.75 2.03 1.78 28.81

2001 San Antonio, Texas (SAT)

AVERAGE TEMPERATURE (F) 2001 SAN ANTONIO, TX (SAT)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 52.8 56.7 66.3 73.7 72.8 80.3 82.2 82.1 82.0 71.9 54.0 50.3 68.8
1973 47.2 51.9 66.1 66.0 74.7 79.2 83.2 82.1 79.3 72.5 65.8 52.2 68.4
1974 51.0 56.5 67.9 69.7 77.3 79.4 83.0 81.2 72.3 68.2 57.3 50.9 67.9
1975 53.2 53.5 61.4 68.4 73.5 80.0 80.9 81.7 76.0 71.1 60.3 53.1 67.8
1976 49.6 61.2 63.8 68.9 71.3 79.8 79.8 81.6 77.5 61.1 52.1 49.9 66.4
1977 44.1 52.8 61.8 66.9 74.8 81.5 84.9 84.7 82.3 71.2 61.4 53.4 68.3
1978 43.4 46.4 59.6 68.9 77.1 82.7 86.1 83.1 78.5 69.3 62.4 51.7 67.4
1979 43.7 52.4 63.3 69.7 73.9 80.9 84.7 83.1 78.7 74.7 58.2 55.4 68.2
1980 52.6 53.7 61.5 67.6 76.1 85.1 88.1 85.3 83.7 70.7 58.3 55.0 69.8
1981 50.8 53.7 60.7 72.9 75.3 81.5 84.2 84.7 78.9 71.9 62.4 53.0 69.2
1982 50.8 49.7 63.1 66.9 74.5 81.6 85.5 86.0 80.1 69.3 59.4 52.4 68.3
1983 48.9 52.1 58.7 65.2 73.6 79.2 82.9 84.5 78.5 70.9 62.5 43.0 66.7
1984 46.7 54.1 64.2 69.7 77.1 82.8 85.0 84.7 77.6 71.2 58.8 59.6 69.3
1985 44.2 50.5 64.1 69.4 76.7 80.2 82.2 85.5 79.4 71.7 64.4 49.9 68.2
1986 53.4 58.0 62.9 72.6 74.6 81.5 85.8 85.7 83.7 69.7 59.4 51.6 69.9
1987 50.7 55.9 57.8 66.1 75.8 80.5 83.8 86.0 79.2 71.2 60.6 54.2 68.5
1988 47.6 54.3 61.3 69.1 76.1 81.2 84.6 86.4 80.7 73.2 65.1 56.0 69.6
1989 56.2 51.6 61.9 70.4 81.7 83.3 86.6 86.0 79.1 71.3 61.8 43.4 69.4
1990 56.4 58.9 61.5 69.7 79.3 87.5 83.4 85.3 80.0 69.3 63.0 51.9 70.5
1991 48.9 56.6 64.0 72.4 77.7 82.8 84.5 85.8 77.8 73.3 57.4 55.5 69.7
1992 50.8 59.1 63.3 69.0 73.7 82.5 84.7 82.2 81.7 73.4 57.3 56.3 69.5
1993 51.2 55.5 61.5 67.3 73.9 81.6 86.1 87.3 81.5 70.7 56.3 55.1 69.0
1994 52.3 56.2 63.9 69.8 76.0 84.5 87.9 86.1 78.4 72.7 64.8 57.0 70.8
1995 53.5 57.4 61.9 69.8 78.6 79.3 84.3 85.5 80.1 69.8 59.5 55.6 69.6
1996 51.0 57.9 57.6 69.5 81.9 84.1 87.3 84.4 78.4 71.1 61.3 54.5 69.9
1997 49.2 53.1 63.3 63.9 74.0 79.8 85.1 86.1 82.2 70.2 57.4 50.2 67.9
1998 56.4 55.3 59.8 66.7 79.8 86.3 88.1 83.6 80.5 71.4 62.4 52.7 70.3
1999 54.6 61.8 62.7 71.2 76.2 81.9 82.9 86.1 80.3 69.6 63.1 54.0 70.4
2000 55.2 62.6 67.0 70.7 78.6 81.0 85.9 86.3 81.0 71.1 56.9 46.4 70.2
2001 49.2 57.5 56.6 70.8 76.3 82.6 85.4 85.6 76.9 67.9 62.9 53.8 68.8
POR=117 YRS 51.6 55.4 62.1 69.3 75.5 81.6 84.0 84.2 79.4 70.9 60.4 53.5 69.0

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 San Antonio, Texas (SAT)

HEATING DEGREE DAYS (base 65 F) 2001 SAN ANTONIO, TX (SAT)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 0 0 0 29 334 457 551 362 29 94 1 0 1857
1973-74 0 0 0 4 85 391 437 257 74 39 0 0 1287
1974-75 0 0 2 19 260 433 389 316 152 41 0 0 1612
1975-76 0 0 1 21 214 394 472 166 143 11 2 0 1424
1976-77 0 0 0 160 382 461 643 336 144 32 0 0 2158
1977-78 0 0 0 19 138 360 667 521 192 27 4 0 1928
1978-79 0 0 0 12 152 413 657 356 109 20 4 0 1723
1979-80 0 0 0 15 243 306 386 333 163 42 0 0 1488
1980-81 0 0 0 62 245 331 437 332 157 10 0 0 1574
1981-82 0 0 2 52 112 368 445 430 171 77 2 0 1659
1982-83 0 0 0 49 237 404 490 356 208 99 1 0 1844
1983-84 0 0 5 20 154 681 563 315 120 21 2 0 1881
1984-85 0 0 9 28 228 203 635 406 109 26 0 0 1644
1985-86 0 0 10 9 112 467 354 232 106 8 1 0 1299
1986-87 0 0 0 14 204 413 443 254 233 98 0 0 1659
1987-88 0 0 0 1 194 339 538 323 179 38 0 0 1612
1988-89 0 0 0 0 122 291 292 392 187 55 0 0 1339
1989-90 0 0 0 42 165 663 283 190 154 32 0 0 1529
1990-91 0 0 0 50 142 422 494 240 96 7 0 0 1451
1991-92 0 0 5 30 271 306 435 188 91 31 5 0 1362
1992-93 0 0 0 0 260 287 421 269 147 42 0 0 1426
1993-94 0 0 0 85 287 323 391 273 130 28 10 0 1527
1994-95 0 0 0 19 99 267 359 215 180 29 0 0 1168
1995-96 0 0 9 12 187 324 435 280 277 63 0 0 1587
1996-97 0 0 0 27 165 325 498 338 108 84 0 0 1545
1997-98 0 0 0 44 251 449 269 270 214 30 0 0 1527
1998-99 0 0 0 22 120 404 328 137 109 32 0 0 1152
1999-00 0 0 0 56 98 346 300 135 79 29 0 0 1043
2000-01 0 0 2 76 269 570 484 234 255 15 0 0 1905
2001- 0 0 0 38 133 367

2001 San Antonio, Texas (SAT)

COOLING DEGREE DAYS (base 65 F) 2001 SAN ANTONIO, TX (SAT)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 11 31 105 276 252 465 542 539 515 249 12 6 3003
1973 8 0 69 129 310 431 570 536 437 242 114 0 2846
1974 11 22 171 188 387 439 568 506 229 124 34 5 2684
1975 29 1 51 151 273 457 502 524 337 217 80 30 2652
1976 3 62 113 136 202 451 467 521 383 45 0 0 2383
1977 0 3 52 98 311 502 620 618 525 218 38 5 2990
1978 3 7 30 152 384 537 660 567 410 154 79 11 2994
1979 3 13 65 166 285 482 619 570 418 322 42 13 2998
1980 11 14 61 127 355 614 725 635 567 245 51 26 3431
1981 3 24 30 255 324 502 603 619 424 273 41 3 3101
1982 11 5 117 142 304 504 645 659 459 191 72 19 3128
1983 0 0 21 111 276 435 560 611 417 207 84 8 2730
1984 0 8 101 169 383 541 625 618 394 230 46 44 3159
1985 0 8 85 165 368 462 539 641 450 223 101 5 3047
1986 2 45 49 244 304 500 652 646 568 166 40 4 3220
1987 4 5 17 135 340 471 589 658 434 199 67 12 2931
1988 6 19 71 166 352 492 617 671 480 264 131 20 3289
1989 24 23 99 222 524 557 678 656 429 244 75 0 3531
1990 22 26 53 177 450 681 578 635 459 192 91 23 3387
1991 0 10 70 234 402 541 612 654 396 295 49 20 3283
1992 0 23 47 158 281 531 618 542 508 267 34 24 3033
1993 1 7 45 117 283 503 660 698 503 267 31 22 3137
1994 8 34 102 183 357 593 715 659 410 261 97 27 3446
1995 7 9 90 177 429 436 603 644 467 167 28 40 3097
1996 9 79 57 203 530 578 700 610 411 220 60 8 3465
1997 12 11 61 60 286 449 628 660 522 212 27 0 2928
1998 11 3 56 84 467 645 724 582 470 227 49 32 3350
1999 12 56 45 225 352 512 561 664 467 206 46 11 3157
2000 7 73 147 207 428 487 654 668 487 270 33 0 3461
2001 1 30 1 195 357 530 640 642 362 135 76 26 2995

2001 San Antonio, Texas (SAT)

SNOWFALL (inches) 2001 SAN ANTONIO, TX (SAT)
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 T 0.8 2.1 0.0 0.0 0.0 0.0 2.9
1973-74 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
1974-75 0.0 0.0 0.0 0.0 0.0 T T 0.0 0.0 0.0 0.0 0.0 T
1975-76 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1976-77 0.0 0.0 0.0 0.0 T T 0.0 0.0 0.0 0.0 0.0 0.0 T
1977-78 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 T
1978-79 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1979-80 0.0 0.0 0.0 0.0 T 0.0 0.0 T 0.0 0.0 0.0 0.0 T
1980-81 0.0 0.0 0.0 0.0 T 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1981-82 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.0 0.0 0.0 0.0 0.0 0.5
1982-83 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
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 0.0 15.9 T 0.0 0.0 0.0 0.0 15.9
1985-86 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1986-87 0.0 0.0 0.0 0.0 0.0 0.0 1.3 0.0 0.0 0.0 0.0 0.0 1.3
1987-88 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.1
1988-89 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 T T
1989-90 0.0 0.0 0.0 0.0 0.0 T 0.0 T T T 0.0 0.0 T
1990-91 0.0 0.0 0.0 0.0 0.0 T 0.0 T 0.0 T T 0.0 T
1991-92 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T T 0.0 0.0 0.0 T
1992-93 0.0 0.0 0.0 0.0 T 0.0 T 0.0 0.0 T T 0.0 T
1993-94 0.0 0.0 0.0 T 0.0 0.0 T T T 0.0 0.0 0.0 T
1994-95 0.0 0.0 0.0 0.0 0.0 0.0 T 0.0 0.0 0.0 0.0 0.0 T
1995-96 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1996-97
1997-98
1998-99
1999-00 0.0 T 0.0 T 0.0 0.0
2000-01 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
2001- 0.0 0.0 0.0 T 0.0 0.0
POR=55 YRS 0.0 0.0 0.0 T 0.0 0.0 0.5 0.2 T T T T 0.7



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2001 San Antonio, Texas (SAT) forum