2001 BIRMINGHAM (MUNICIPAL AIRPORT), ALABAMA (BHM)



Birmingham is located in a hilly area of north–central Alabama in the foothills of the Appalachians about 300 miles inland from the Gulf of Mexico. There is a series of southwest to northeast valleys and ridges in the area.

The city is far enough inland to be protected from destructive tropical hurricanes, yet close enough that the Gulf has a pronounced modifying effect on the climate.

Although summers are long and hot, they are not generally excessively hot. On a typical mid–summer day, the temperature will be nearly 70 degrees at daybreak, approach 90 degrees at mid–day, and level off in the low 90s during the afternoon. It is not unusual for the temperature to remain below 100 degrees for several years in a row. However, every few years an extended heat wave will bring temperatures over 100 degrees. July is normally the hottest month but there is little difference from mid–June to mid–August. Rather persistent high humidity adds to the summer discomfort.

January is normally the coldest month but there is not much difference from mid–December to mid–February. Overall, winters are relatively mild. Even in cold spells, it is unusual for the temperature to remain below freezing all day. Sub–zero cold is extremely rare, occurring only a very few times this century. Extremely low temperatures almost always occur under clear skies after a snowfall.

Snowfall is erratic. Sometimes there is a two– or three–year span with no measurable snow. On rare occasions, there may be a 2 to 4 inch snowstorm. The snow usually melts quickly. Even 1 or 2 inches of snow can effectively shut down this sunbelt city because of the hilly terrain, the wetness of the snow and the unfamiliarity of motorists driving on snow and ice.

Birmingham is blessed with abundant rainfall. It is fairly well distributed throughout the year. However, some of the wetter winter months, plus March and July, have twice the rainfall of October, the driest month. Summer rainfall is almost entirely from scattered afternoon and early evening thunderstorms. Serious droughts are rare and most dry spells are not severe.

The stormiest time of the year with the greatest risk of severe thunderstorms and tornadoes is in spring, especially in March and April.

In a normal year, the last 32 degree minimum temperature in the spring is in mid to late March and the first in autumn is in early November.

NORMALS, MEANS, AND EXTREMES

BIRMINGHAM, AL (BHM)

LATITUDE:    LONGITUDE:     ELEVATION (FT):    TIME ZONE:    WBAN: 13876

33 33′ 50″ N  86 45′ 16″ W  GRND: 636 BARO: 639  CENTRAL (UTC + 6)

2001 Birmingham (Municipal Airport), Alabama (BHM)

ELEMENT POR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC YEAR
TEMPERATURE F NORMAL DAILY MAXIMUM 30 51.7 56.9 66.1 74.6 81.0 87.4 89.9 89.1 83.9 74.7 64.6 55.7 73.0
MEAN DAILY MAXIMUM 54 53.3 58.3 65.6 74.6 81.8 87.8 90.6 90.0 84.6 75.1 64.2 55.9 73.5
HIGHEST DAILY MAXIMUM 58 81 83 89 92 99 102 106 103 100 94 85 80 106
YEAR OF OCCURRENCE 1949 1996 1982 1987 1962 1954 1980 1999 1990 1954 2000 1951 JUL 1980
MEAN OF EXTREME MAXS. 54 70.7 75.2 81.5 86.2 90.5 95.3 97.5 96.1 94.1 86.3 78.6 72.1 85.3
NORMAL DAILY MINIMUM 30 31.3 34.5 42.3 49.2 57.7 65.2 69.5 68.8 62.9 50.2 41.6 34.8 50.7
MEAN DAILY MINIMUM 54 33.2 36.3 42.2 49.9 58.4 66.2 70.1 69.2 63.2 50.9 41.1 35.5 51.4
LOWEST DAILY MINIMUM 58 -6 3 2 26 35 42 51 51 37 27 5 1 -6
YEAR OF OCCURRENCE 1985 1958 1993 1973 1944 1966 1967 1946 1967 1956 1950 1989 JAN 1985
MEAN OF EXTREME MINS. 54 14.2 18.0 24.7 32.8 43.4 54.1 61.7 60.4 48.2 34.1 24.3 17.4 36.1
NORMAL DRY BULB 30 41.5 45.7 54.2 62.0 69.4 76.3 79.8 79.0 73.4 62.5 53.1 45.2 61.8
MEAN DRY BULB 54 43.2 47.3 54.0 62.2 70.1 77.0 80.2 79.6 73.9 63.1 52.8 45.7 62.4
MEAN WET BULB 18 39.3 43.2 48.1 54.8 63.3 69.8 68.9 67.7 66.5 56.5 45.8 39.1 55.2
MEAN DEW POINT 18 33.3 36.9 40.9 48.9 59.0 66.5 70.0 68.6 62.5 51.9 40.7 33.6 51.1
NORMAL NO. DAYS WITH:
MAXIMUM 90 30 0.0 0.0 0.0 0.1 2.5 11.1 16.6 15.5 6.7 0.1 0.0 0.0 52.6
MAXIMUM 32 30 1.8 0.4 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * 0.6 2.8
MINIMUM 32 30 17.7 13.1 5.6 1.0 0.0 0.0 0.0 0.0 0.0 0.5 6.3 14.7 58.9
MINIMUM 0 30 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2
H/C NORMAL HEATING DEG. DAYS 30 729 540 350 135 31 0 0 0 7 148 364 614 2918
NORMAL COOLING DEG. DAYS 30 0 0 15 45 168 339 459 434 259 71 7 0 1797
RH NORMAL (PERCENT) 30 70 66 64 65 70 72 74 75 74 72 71 71 70
HOUR 00 LST 30 76 73 72 77 83 84 86 86 84 83 80 77 80
HOUR 06 LST 30 80 79 79 83 86 86 88 89 88 86 84 81 84
HOUR 12 LST 30 61 56 53 50 54 56 60 59 58 53 57 60 56
HOUR 18 LST 30 65 58 53 51 57 60 65 65 68 69 68 68 62
S PERCENT POSSIBLE SUNSHINE 34 42 50 55 63 66 65 59 63 61 66 55 46 58
W/O MEAN NO. DAYS WITH:
HEAVY FOG (VISBY 1/4 MI) 59 1.2 0.6 0.6 0.3 0.3 0.6 0.4 0.5 0.5 0.7 1.0 1.2 7.9
THUNDERSTORMS 59 2.0 2.4 4.5 5.1 7.1 8.8 11.2 8.6 4.0 1.3 1.9 1.2 58.1
CLOUDINESS MEAN:
SUNRISE-SUNSET (OKTAS)
MIDNIGHT-MIDNIGHT (OKTAS)
MEAN NO. DAYS WITH:
CLEAR
PARTLY CLOUDY
CLOUDY
PR MEAN STATION PRESSURE(IN) 27 29.50 29.40 29.40 29.40 29.30 29.30 29.40 29.40 29.40 29.41 29.50 29.50 29.41
MEAN SEA-LEVEL PRES. (IN) 18 30.15 30.12 30.06 30.02 30.00 30.00 30.04 30.03 30.04 30.10 30.13 30.17 30.07
WINDS MEAN SPEED (MPH) 40 8.1 8.6 9.0 8.5 7.0 6.1 5.9 5.5 6.5 6.2 7.0 7.6 7.2
PREVAIL. DIR (TENS OF DEGS) 24 36 36 36 18 15 04 04 04 09 36 36 36 36
MAXIMUM 2-MINUTE:
SPEED (MPH) 3 32 51 32 38 30 36 48 38 25 29 32 32 51
DIR. (TENS OF DEGS) 27 24 29 30 31 01 36 03 02 01 30 27 24
YEAR OF OCCURRENCE 2000 2001 2000 2000 1999 1999 2000 2000 1999 2000 2001 2000 FEB 2001
MAXIMUM 5-SECOND:
SPEED (MPH) 3 39 68 40 53 38 46 58 45 31 37 49 40 68
DIR. (TENS OF DEGS) 16 24 13 29 34 01 36 04 34 32 28 21 24
YEAR OF OCCURRENCE 1999 2001 1999 2000 2000 1999 2000 2000 1999 2001 2001 2000 FEB 2001
PRECIPITATION NORMAL (IN) 30 5.10 4.72 6.19 4.96 4.85 3.73 5.25 3.59 3.93 2.81 4.33 5.12 54.58
MAXIMUM MONTHLY (IN) 58 11.00 17.67 15.80 13.75 11.10 9.04 13.70 10.85 10.43 11.90 15.25 13.98 17.67
YEAR OF OCCURRENCE 1949 1961 1980 1979 1969 1999 1950 1967 1977 1995 1948 1961 FEB 1961
MINIMUM MONTHLY (IN) 58 1.09 1.20 1.71 0.42 0.88 0.67 0.30 0.38 T 0.07 0.42 0.81 T
YEAR OF OCCURRENCE 1981 1968 1985 1986 2000 1968 1983 1989 1955 1991 1949 1980 SEP 1955
MAXIMUM IN 24 HOURS (IN) 52 5.81 6.57 7.05 5.08 4.63 3.85 5.47 5.13 5.03 6.94 4.87 5.29 7.05
YEAR OF OCCURRENCE 1949 1961 1970 1966 1969 1957 1985 1952 1977 1995 1948 1961 MAR 1970
NORMAL NO. DAYS WITH:
PRECIPITATION 0.01 30 10.9 9.6 10.8 9.2 9.9 9.4 12.7 9.4 8.2 6.2 9.1 10.4 115.8
PRECIPITATION 1.00 30 1.6 1.4 2.1 1.7 1.5 1.1 1.3 1.0 1.4 0.8 1.4 1.5 16.8
SNOWFALL NORMAL (IN) 30 0.7 0.1 0.1 0.2 0.0 0.0 0.0 0.0 0.0 0.0 T 0.3 1.4
MAXIMUM MONTHLY (IN) 58 6.6 2.3 13.0 5.0 T T T 0.0 T T 1.4 8.0 13.0
YEAR OF OCCURRENCE 1982 1960 1993 1987 1996 1992 1994 1992 1993 1950 1963 MAR 1993
MAXIMUM IN 24 HOURS (IN) 54 4.5 2.3 13.0 5.0 T T T 0.0 T T 1.4 8.4 13.0
YEAR OF OCCURRENCE 1948 1960 1993 1987 1996 1992 1994 1992 1993 1950 1963 MAR 1993
MAXIMUM SNOW DEPTH (IN) 54 8 2 13 5 0 0 0 0 0 0 1 11 13
YEAR OF OCCURRENCE 1964 1960 1993 1987 1950 1958 MAR 1993
NORMAL NO. DAYS WITH:
SNOWFALL 1.0 30 0.3 0.0 0.1 0.* 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.* 0.4

2001 Birmingham (Municipal Airport), Alabama (BHM)

PRECIPITATION (inches) 2001 BIRMINGHAM (MUNICIPAL AIRPORT), AL (BHM)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 9.30 2.15 4.79 2.56 3.82 2.70 3.55 2.01 8.09 3.35 4.47 5.76 52.55
1973 6.85 2.33 9.71 5.33 8.29 3.74 8.36 5.41 2.64 0.96 4.91 7.58 66.11
1974 6.85 4.94 2.43 5.43 5.43 1.42 4.69 8.28 4.94 1.49 4.13 5.97 56.00
1975 7.23 4.96 7.57 3.19 4.15 2.44 7.33 3.33 3.69 3.74 4.15 3.49 55.27
1976 4.12 1.80 14.15 1.99 9.00 2.75 4.92 3.34 4.91 1.59 2.23 4.35 55.15
1977 5.08 3.89 8.70 6.73 3.51 0.96 6.24 0.87 10.43 7.52 4.10 2.01 60.04
1978 4.54 1.31 3.07 2.64 8.51 5.04 5.09 2.09 1.14 0.22 2.71 5.43 41.79
1979 5.94 4.70 5.69 13.75 6.64 1.19 9.98 2.30 10.40 2.05 5.51 1.55 69.70
1980 6.63 2.36 15.80 9.10 7.30 3.01 2.11 2.84 5.26 3.21 3.04 0.81 61.47
1981 1.09 4.87 7.23 2.45 2.81 2.49 3.88 5.30 0.93 3.34 1.67 5.82 41.88
1982 5.19 6.29 2.71 7.86 3.19 5.39 3.53 2.68 0.66 3.73 7.11 9.51 57.85
1983 3.26 6.42 5.06 8.28 9.57 3.81 0.30 0.99 2.83 3.67 9.14 12.63 65.96
1984 3.96 2.79 4.07 8.61 6.07 1.41 5.06 3.86 0.16 3.91 5.42 2.30 47.62
1985 5.22 5.79 1.71 2.86 4.36 5.34 10.07 4.07 1.97 4.12 2.62 2.54 50.67
1986 1.21 1.79 2.45 0.42 3.66 3.87 1.61 5.56 2.52 5.24 9.66 3.08 41.07
1987 5.89 5.82 4.77 1.03 6.03 4.59 2.30 3.96 3.52 1.16 3.17 3.08 45.32
1988 5.55 2.52 3.18 3.18 1.22 0.79 2.95 3.43 8.57 3.41 6.33 2.84 43.97
1989 4.76 4.31 5.70 3.40 3.82 8.00 6.42 0.38 7.38 1.52 4.63 3.39 53.71
1990 7.38 7.43 5.81 2.38 4.12 2.08 3.16 0.59 2.04 2.98 4.02 5.47 47.46
1991 3.19 4.27 5.42 4.87 8.90 7.52 4.00 4.59 3.02 0.07 4.00 3.64 53.49
1992 3.22 3.96 3.36 2.61 1.18 5.34 7.41 7.43 5.70 2.18 7.94 5.27 55.60
1993 6.11 2.35 4.40 2.99 3.93 1.47 1.16 2.72 4.62 3.22 2.22 4.01 39.20
1994 5.10 4.78 7.56 3.77 3.74 5.41 7.75 4.05 4.67 5.39 3.93 4.10 60.25
1995 3.85 4.37 3.63 4.42 3.15 3.07 1.81 1.51 5.53 11.90 6.97 4.91 55.12
1996 9.59 3.09 10.59 2.70 5.16 2.17 8.50 4.45 5.83 3.55 4.00 3.28 62.91
1997 6.31 4.82 3.23 5.08 4.41 5.55 5.99 2.74 4.00 5.49 3.74 4.13 55.49
1998 8.06 8.52 6.36 7.99 4.03 3.25 7.75 8.98 0.52 1.17 4.37 6.27 67.27
1999 8.63 2.34 6.75 2.03 5.37 9.04 3.13 0.81 0.65 4.16 2.73 3.13 48.77
2000 5.72 2.17 10.67 8.19 0.88 2.89 4.62 2.20 1.66 1.26 8.14 1.84 50.24
2001 5.23 4.35 8.43 7.30 5.25 7.53 3.61 7.38 6.26 2.43 4.20 4.76 66.73
POR=106 YRS 5.06 4.78 6.06 4.73 4.23 4.03 5.22 4.13 3.47 2.82 3.85 4.93 53.31

2001 Birmingham (Municipal Airport), Alabama (BHM)

AVERAGE TEMPERATURE (F) 2001 BIRMINGHAM (MUNICIPAL AIRPORT), AL (BHM)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 47.2 46.9 53.7 63.1 67.2 74.2 76.9 78.8 75.1 61.7 48.9 47.7 61.8
1973 40.7 42.3 58.6 58.1 67.5 75.9 79.4 77.2 77.2 66.6 56.2 45.0 62.1
1974 52.8 47.3 61.2 61.5 71.0 72.7 79.2 78.4 70.1 60.6 52.7 47.3 62.9
1975 49.1 50.1 53.9 60.5 72.4 76.4 78.1 79.1 70.2 63.5 54.1 44.6 62.7
1976 39.1 54.3 58.7 61.5 64.2 74.4 78.3 77.0 71.9 57.4 45.5 41.2 60.3
1977 31.6 44.8 57.3 65.2 72.4 79.8 83.4 82.1 75.7 59.9 55.0 44.1 62.6
1978 33.5 37.4 50.2 62.9 68.2 77.1 81.5 79.8 76.9 60.6 57.9 46.1 61.0
1979 37.7 44.0 55.2 63.4 69.8 75.1 79.9 78.4 71.4 63.9 52.8 45.9 61.5
1980 45.2 42.3 51.4 60.9 70.0 77.6 84.4 83.0 78.4 60.3 52.4 44.0 62.5
1981 39.2 48.2 51.3 67.1 67.8 80.6 82.2 79.2 71.9 61.8 54.6 42.7 62.2
1982 41.9 47.3 58.9 59.1 72.6 75.7 80.7 79.6 73.1 64.2 54.1 51.2 63.2
1983 40.6 44.8 50.8 56.6 67.3 74.1 80.3 81.7 71.7 63.0 51.9 39.8 60.2
1984 38.5 46.8 52.4 59.0 67.5 77.1 78.2 77.5 72.1 71.1 51.4 54.3 62.2
1985 35.5 43.2 56.7 63.7 69.5 76.2 78.1 78.2 72.0 67.3 61.0 40.2 61.8
1986 41.9 49.9 55.5 61.8 71.2 78.6 82.5 77.8 76.9 63.9 57.4 44.0 63.5
1987 42.1 46.9 54.6 59.5 73.8 76.7 80.5 82.0 73.1 56.8 54.5 49.1 62.5
1988 39.7 43.5 54.1 61.2 67.6 77.5 79.8 81.5 74.4 57.7 55.2 45.8 61.5
1989 48.9 45.7 56.4 60.3 67.7 75.5 79.2 79.5 72.5 61.9 52.9 38.0 61.5
1990 49.0 54.5 57.0 60.7 68.9 77.8 79.8 82.3 77.5 63.9 55.7 49.7 64.7
1991 44.8 49.7 55.8 65.7 73.1 76.9 81.4 80.8 75.4 65.1 50.0 49.3 64.0
1992 43.4 50.6 53.8 61.0 67.4 74.7 80.4 75.6 73.4 61.5 51.7 45.8 61.6
1993 47.0 44.9 50.4 58.8 68.7 78.5 83.8 81.2 73.2 61.9 51.7 44.4 62.0
1994 39.6 49.3 54.6 65.3 67.5 78.5 78.0 78.0 72.1 64.1 57.0 49.2 62.8
1995 44.4 46.2 57.4 63.7 72.0 75.6 83.2 84.8 74.5 62.5 48.0 43.6 63.0
1996 42.6 46.0 50.9 59.1 73.3 77.2 79.9 78.6 71.8 62.6 52.0 48.7 61.9
1997 44.7 50.5 59.5 58.2 66.0 74.4 80.3 77.9 74.9 62.7 49.7 43.0 61.8
1998 46.7 48.0 52.7 60.9 73.4 80.3 82.2 80.4 78.2 67.6 57.3 50.7 64.9
1999 49.3 51.2 51.6 67.2 69.9 77.1 81.7 83.6 74.8 64.0 55.5 46.7 64.4
2000 44.5 52.2 58.0 59.4 74.3 77.6 82.6 81.6 74.2 65.8 52.0 38.1 63.4
2001 40.1 51.0 49.7 64.5 70.5 75.3 80.1 78.5 71.6 60.6 58.6 49.3 62.5
POR=106 YRS 44.7 47.1 54.9 62.6 70.4 77.6 80.1 79.6 74.9 64.1 53.5 46.0 63.0

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 Birmingham (Municipal Airport), Alabama (BHM)

HEATING DEGREE DAYS (base 65 F) 2001 BIRMINGHAM (MUNICIPAL AIRPORT), AL (BHM)
YEAR JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN TOTAL
1972-73 0 0 9 135 486 534 749 629 217 228 48 0 3035
1973-74 0 0 3 73 285 615 374 491 161 147 9 0 2158
1974-75 0 0 19 159 378 542 493 412 361 190 2 0 2556
1975-76 0 0 49 105 349 626 795 314 213 129 65 0 2645
1976-77 0 0 7 241 580 732 1026 566 252 73 5 0 3482
1977-78 0 0 0 176 292 640 967 768 452 120 42 0 3457
1978-79 0 0 0 160 220 578 839 584 303 83 33 0 2800
1979-80 0 0 0 101 365 588 604 655 417 144 14 0 2888
1980-81 0 0 7 181 372 642 795 464 428 46 51 0 2986
1981-82 0 0 19 138 314 682 711 490 250 199 4 0 2807
1982-83 0 0 16 134 331 449 751 558 437 262 39 0 2977
1983-84 0 0 26 108 388 774 817 519 392 202 68 2 3296
1984-85 0 0 10 27 410 330 907 604 278 123 16 3 2708
1985-86 0 0 14 62 165 761 711 415 305 132 21 0 2586
1986-87 0 1 0 112 239 644 705 500 320 201 0 0 2722
1987-88 0 0 5 248 315 488 777 616 347 134 18 0 2948
1988-89 0 0 0 234 289 589 492 545 289 200 65 0 2703
1989-90 0 0 27 140 363 834 491 299 265 172 32 0 2623
1990-91 0 0 16 138 282 474 620 421 304 46 7 0 2308
1991-92 0 0 12 97 455 492 663 409 344 173 46 0 2691
1992-93 0 0 6 116 398 587 550 559 452 196 20 0 2884
1993-94 0 0 16 153 411 633 780 433 328 90 31 0 2875
1994-95 0 0 3 82 241 483 632 520 250 101 24 0 2336
1995-96 0 0 12 137 509 662 686 560 440 203 12 0 3221
1996-97 0 0 10 121 390 498 628 399 188 209 46 0 2489
1997-98 0 0 1 162 450 676 562 469 400 150 13 5 2888
1998-99 0 0 0 47 231 462 483 383 408 73 8 0 2095
1999-00 0 0 12 107 279 559 634 370 219 175 1 0 2356
2000-01 0 0 10 84 419 828 766 392 466 101 3 0 3069
2001- 0 0 32 183 200 478

2001 Birmingham (Municipal Airport), Alabama (BHM)

COOLING DEGREE DAYS (base 65 F) 2001 BIRMINGHAM (MUNICIPAL AIRPORT), AL (BHM)
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
1972 4 6 7 88 93 291 379 434 318 40 8 2 1670
1973 0 0 24 28 132 333 452 385 376 129 28 0 1887
1974 4 3 52 48 204 238 450 418 180 28 15 0 1640
1975 8 0 26 61 241 351 416 447 211 66 29 2 1858
1976 0 8 25 27 48 290 418 376 219 15 1 0 1427
1977 0 5 21 85 241 450 578 537 329 25 0 1 2272
1978 0 0 0 64 151 370 515 463 365 34 12 1 1975
1979 0 1 8 43 188 308 466 424 198 74 7 2 1719
1980 0 4 6 25 176 386 607 563 413 43 2 0 2225
1981 0 1 9 113 145 475 539 448 231 46 9 0 2016
1982 1 0 65 28 247 327 495 459 265 118 12 27 2044
1983 0 0 7 17 115 281 481 528 233 53 2 0 1717
1984 0 0 11 30 151 373 421 395 230 221 6 6 1844
1985 0 1 27 90 163 349 413 417 233 139 51 1 1884
1986 0 0 16 43 222 413 547 406 364 84 18 0 2113
1987 0 0 5 46 280 357 487 532 254 1 7 3 1972
1988 0 0 13 26 105 382 467 516 292 14 1 0 1816
1989 0 14 27 65 155 323 447 459 257 51 3 0 1801
1990 1 14 21 49 160 393 466 543 398 110 9 4 2168
1991 0 0 28 74 266 364 515 496 333 106 9 10 2201
1992 0 0 2 59 129 298 484 333 265 14 5 0 1589
1993 0 0 5 19 140 410 591 511 271 63 18 0 2028
1994 0 0 10 109 115 408 410 411 221 58 8 0 1750
1995 2 0 23 67 247 323 571 620 301 67 3 3 2227
1996 0 16 10 34 280 374 470 428 219 54 8 1 1894
1997 6 1 23 14 82 287 481 404 303 99 0 0 1700
1998 1 0 27 34 277 470 538 484 403 134 6 26 2400
1999 7 5 0 146 168 371 524 580 312 83 0 0 2196
2000 3 8 9 12 298 385 553 521 294 117 37 0 2237
2001 0 6 0 95 182 314 473 423 234 53 17 0 1797

2001 Birmingham (Municipal Airport), Alabama (BHM)

SNOWFALL (inches) 2001 BIRMINGHAM (MUNICIPAL AIRPORT), AL (BHM)
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 T 0.0 T 0.0 0.0 0.0 0.0 T
1974-75 0.0 0.0 0.0 0.0 T 0.4 T T T 0.0 0.0 0.0 0.4
1975-76 0.0 0.0 0.0 0.0 T T T 0.0 0.0 0.0 0.0 0.0 T
1976-77 0.0 0.0 0.0 0.0 T T 1.4 T 0.0 0.0 0.0 0.0 1.4
1977-78 0.0 0.0 0.0 0.0 0.0 T 1.9 T T 0.0 0.0 0.0 1.9
1978-79 0.0 0.0 0.0 0.0 0.0 0.0 T T 0.0 0.0 0.0 0.0 T
1979-80 0.0 0.0 0.0 0.0 0.0 0.0 T T 0.3 0.0 0.0 0.0 0.3
1980–81 0.0 0.0 0.0 0.0 T T 0.0 T 0.0 0.0 0.0 0.0 T
1981–82 0.0 0.0 0.0 0.0 0.0 T 2.1 0.0 T 0.0 0.0 0.0 2.1
1982–83 0.0 0.0 0.0 0.0 0.0 T 1.0 T 1.5 0.0 0.0 0.0 2.5
1983–84 0.0 0.0 0.0 0.0 0.0 T T T 2.0 0.0 0.0 0.0 2.0
1984–85 0.0 0.0 0.0 0.0 0.0 T T 0.3 0.0 0.0 0.0 0.0 0.3
1985–86 0.0 0.0 0.0 0.0 0.0 T T T 0.0 0.0 0.0 0.0 T
1986–87 0.0 0.0 0.0 0.0 0.0 T 2.6 0.0 T 5.0 0.0 0.0 7.6
1987–88 0.0 0.0 0.0 0.0 0.0 0.0 1.0 T 0.0 0.0 0.0 0.0 1.0
1988-89 0.0 0.0 0.0 0.0 0.0 T 0.0 T T T 0.0 0.0 T
1989-90 0.0 0.0 0.0 0.0 T 0.4 0.0 T 0.0 0.0 T T 0.4
1990-91 T 0.0 0.0 0.0 0.0 T T T T T 0.0 T T
1991-92 0.0 0.0 0.0 0.0 T 0.0 4.4 0.0 T 0.0 T T 4.4
1992-93 0.0 0.0 T T 0.0 0.0 0.0 T 13.0 0.0 T 0.0 13.0
1993-94 0.0 0.0 0.0 T 0.0 T T 0.0 T 0.0 0.0 0.0 T
1994-95 T 0.0 0.0 0.0 0.0 0.0 T 1.0 T 0.0 T 0.0 1.0
1995-96 0.0 0.0 0.0 0.0 T T 0.3 1.2 T 0.0 T 0.0 1.5
1996-97 0.0 0.0 0.0 0.0 0.0 T T T 0.0 0.0 T 0.0 T
1997-98 0.0 0.0 0.0 0.0 T 1.7 T T T T 0.0 T 1.7
1998-99 T 0.0 0.0 0.0 T T 0.0 T 0.0 T
1999-00 0.0 0.0 0.0 0.0 0.0 0.0 3.0 T T T 0.0 0.0 3.0
2000–01 T 0.0 0.0 0.0 T T T T T T 0.0 T T
2001– 0.0 0.0 0.0 0.0 0.0 0.0
POR=57 YRS T 0.0 T T 0.0 0.3 0.6 0.2 0.3 0.1 T T 1.5



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