Record envelope, standing records and threshold days for Atlanta 5 WNW (USC00200343), Michigan, United States, with 78 years of record.
Key Facts for Atlanta 5 WNW
Atlanta 5 WNW (USC00200343) is a weather station in Michigan, United States at 45.03 latitude and -84.23 longitude, 360 m (1,180 ft) above sea level.
The station reports from 1927 to 2004, 78 years of record.
1,464 records set at Atlanta 5 WNW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Atlanta 5 WNW set a daily record high maximum temperature of 30.0 C (86.0 F) on 24 September 2004.
About the Station
Location: Michigan, United States, 45.03 latitude, -84.23 longitude.
Elevation: 360 m (1,180 ft).
Period of record: 1927 to 2004, 78 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Atlanta 5 WNW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Atlanta 5 WNW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-43.3 C (-45.9 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-20.0 C (-4.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-3.9 C (25.0 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-12.2 C (10.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-22.8 C (-9.0 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-36.1 C (-33.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Atlanta 5 WNW still stand. 1936 holds the most, with 38.
Standing records at Atlanta 5 WNW by the year they were set
Year set
Standing records
1927
17
1928
24
1929
32
1930
25
1931
23
1932
17
1933
27
1934
33
1935
22
1936
38
1937
19
1938
22
1939
17
1940
28
1941
27
1942
20
1943
24
1944
26
1945
37
1946
26
1947
31
1948
26
1949
27
1950
27
1951
11
1952
6
1953
25
1954
11
1955
26
1956
16
1957
9
1958
11
1959
18
1960
6
1961
11
1962
13
1963
31
1964
30
1965
28
1966
18
1967
15
1968
21
1969
7
1970
12
1971
12
1972
10
1973
22
1974
8
1975
16
1976
20
1977
19
1978
3
1979
14
1980
22
1981
19
1982
25
1983
20
1984
14
1985
12
1986
15
1987
7
1988
6
1989
20
1990
10
1991
38
1992
23
1993
11
1994
13
1995
21
1996
14
1997
13
1998
10
1999
14
2000
25
2001
15
2002
14
2003
10
2004
9
All-Time Record Progression
1 new records
1 all-time records were set at Atlanta 5 WNW between 6 November 1990 and 6 November 1990. Each dot is a new record.
When Atlanta 5 WNW set new all-time records
Date
Kind
Detail
1990-11-06
Record daily snowfall
Record daily snowfall 33.0 cm (13.0 in)
Wettest Day of Each Month
Sep: 137.2 mm (5.4 in)
The wettest day on record for each calendar month at Atlanta 5 WNW. The most was 137.2 mm (5.4 in) on 3 September 1937.
Record daily precipitation for each month at Atlanta 5 WNW
Month
Record daily precipitation (mm)
Date
Jan
32.3 mm (1.3 in)
24 January 1938
Feb
44.2 mm (1.7 in)
20 February 2002
Mar
64.8 mm (2.6 in)
12 March 1977
Apr
77.2 mm (3.0 in)
12 April 2001
May
63.8 mm (2.5 in)
8 May 1963
Jun
104.4 mm (4.1 in)
28 June 1931
Jul
55.1 mm (2.2 in)
20 July 1972
Aug
66.0 mm (2.6 in)
12 August 1983
Sep
137.2 mm (5.4 in)
3 September 1937
Oct
56.9 mm (2.2 in)
10 October 1936
Nov
48.8 mm (1.9 in)
11 November 1998
Dec
44.7 mm (1.8 in)
27 December 1942
Period of Record Coverage
1927 to 2004
Complete yearUnder 90 percent of days
78 years of record at Atlanta 5 WNW, 1927 to 2004. 18 years have data for under 90 percent of days and are left out of rankings: 1927, 1950, 1952, 1965, 1969, 1974, 1975, 1976 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Atlanta 5 WNW, 1928 to 2003. Blue stripes are years cooler than the station's own mean of 6.2 C (43.2 F); red stripes are warmer. The coolest year was 1929, at 4.3 C (39.8 F), and the warmest was 2001, at 8.5 C (47.3 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Atlanta 5 WNW as warming stripes, 1928 to 2003
Year
Annual mean temperature
Difference from the station mean
1928
5.1 C
-1.14 C
1929
4.3 C
-1.87 C
1930
5.9 C
-0.36 C
1931
7.3 C
+1.11 C
1932
6.1 C
-0.09 C
1933
6.0 C
-0.25 C
1934
5.3 C
-0.93 C
1935
5.4 C
-0.85 C
1936
4.9 C
-1.33 C
1937
6.1 C
-0.16 C
1938
6.9 C
+0.69 C
1939
6.0 C
-0.23 C
1940
5.3 C
-0.95 C
1941
7.0 C
+0.74 C
1942
6.2 C
+0.03 C
1943
5.4 C
-0.85 C
1944
6.8 C
+0.62 C
1945
5.8 C
-0.37 C
1946
6.5 C
+0.33 C
1947
6.3 C
+0.07 C
1948
6.2 C
+0.01 C
1949
7.3 C
+1.04 C
1953
8.0 C
+1.74 C
1954
6.7 C
+0.53 C
1955
7.7 C
+1.48 C
1956
6.3 C
+0.06 C
1957
6.6 C
+0.36 C
1958
5.9 C
-0.27 C
1959
6.7 C
+0.52 C
1960
6.4 C
+0.21 C
1961
6.8 C
+0.57 C
1962
6.1 C
-0.13 C
1963
5.8 C
-0.43 C
1964
7.0 C
+0.83 C
1967
5.9 C
-0.27 C
1971
6.1 C
-0.07 C
1972
5.1 C
-1.08 C
1980
5.6 C
-0.62 C
1981
6.2 C
+0.03 C
1982
5.3 C
-0.89 C
1985
5.9 C
-0.33 C
1991
6.8 C
+0.58 C
1992
5.1 C
-1.13 C
1993
5.1 C
-1.12 C
1994
5.8 C
-0.43 C
1996
4.8 C
-1.40 C
1998
8.3 C
+2.06 C
1999
7.8 C
+1.56 C
2000
6.4 C
+0.17 C
2001
8.5 C
+2.31 C
2002
7.0 C
+0.80 C
2003
5.5 C
-0.75 C
The fitted trend in annual mean temperature here over 1928 to 2003 is 0.07 C (-0.04 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Atlanta 5 WNW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.07 C (-0.04 to 0.17) per decade
0.1 F (-0.1 to 0.3) per decade
1928 to 2003
52
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.3 to 0.1) per decade
1928 to 2003
52
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.6) per decade
1928 to 2003
52
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1927 to 2004
Yearly extremes at Atlanta 5 WNW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1936
34.4 C (93.9 F)
78
Coldest night (TNn)
-43.3 C (-45.9 F)
1934
-28.9 C (-20.0 F)
78
Wettest day (Rx1day)
137.2 mm (5.4 in)
1937
43.2 mm (1.7 in)
78
Wettest five days (Rx5day)
177.3 mm (7.0 in)
1937
65.0 mm (2.6 in)
78
Longest dry spell (CDD)
34 days
1958
18 days
78
Hottest day (TXx)
The hottest day of the year at Atlanta 5 WNW, 1927 to 2004. The record is 40.0 C (104.0 F) in 1936, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Atlanta 5 WNW by year
Year
Hottest day (TXx)
1927
35.0 C (95.0 F)
1928
34.4 C (93.9 F)
1929
33.9 C (93.0 F)
1930
32.8 C (91.0 F)
1931
35.6 C (96.1 F)
1932
33.3 C (91.9 F)
1933
35.6 C (96.1 F)
1934
38.3 C (100.9 F)
1935
35.0 C (95.0 F)
1936
40.0 C (104.0 F)
1937
35.0 C (95.0 F)
1938
35.0 C (95.0 F)
1939
35.0 C (95.0 F)
1940
34.4 C (93.9 F)
1941
36.7 C (98.1 F)
1942
35.6 C (96.1 F)
1943
33.9 C (93.0 F)
1944
35.6 C (96.1 F)
1945
35.6 C (96.1 F)
1946
33.9 C (93.0 F)
1947
38.9 C (102.0 F)
1948
37.2 C (99.0 F)
1949
36.1 C (97.0 F)
1950
33.9 C (93.0 F)
1951
32.2 C (90.0 F)
1952
34.4 C (93.9 F)
1953
36.1 C (97.0 F)
1954
33.3 C (91.9 F)
1955
37.2 C (99.0 F)
1956
35.0 C (95.0 F)
1957
32.2 C (90.0 F)
1958
32.8 C (91.0 F)
1959
33.9 C (93.0 F)
1960
32.8 C (91.0 F)
1961
32.8 C (91.0 F)
1962
33.3 C (91.9 F)
1963
35.6 C (96.1 F)
1964
37.8 C (100.0 F)
1965
34.4 C (93.9 F)
1966
38.3 C (100.9 F)
1967
31.7 C (89.1 F)
1968
33.9 C (93.0 F)
1969
34.4 C (93.9 F)
1970
32.8 C (91.0 F)
1971
35.0 C (95.0 F)
1972
32.2 C (90.0 F)
1973
35.0 C (95.0 F)
1974
25.6 C (78.1 F)
1975
35.0 C (95.0 F)
1976
32.2 C (90.0 F)
1977
31.7 C (89.1 F)
1978
35.6 C (96.1 F)
1979
33.3 C (91.9 F)
1980
33.9 C (93.0 F)
1981
36.7 C (98.1 F)
1982
33.3 C (91.9 F)
1983
37.8 C (100.0 F)
1984
32.2 C (90.0 F)
1985
32.2 C (90.0 F)
1986
33.9 C (93.0 F)
1987
30.6 C (87.1 F)
1988
24.4 C (75.9 F)
1989
33.9 C (93.0 F)
1990
32.2 C (90.0 F)
1991
36.7 C (98.1 F)
1992
33.3 C (91.9 F)
1993
35.0 C (95.0 F)
1994
36.7 C (98.1 F)
1995
36.7 C (98.1 F)
1996
32.8 C (91.0 F)
1997
34.4 C (93.9 F)
1998
34.4 C (93.9 F)
1999
37.2 C (99.0 F)
2000
31.7 C (89.1 F)
2001
36.1 C (97.0 F)
2002
33.3 C (91.9 F)
2003
35.0 C (95.0 F)
2004
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at Atlanta 5 WNW, 1927 to 2004. The record is -43.3 C (-45.9 F) in 1934, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Atlanta 5 WNW by year
Year
Coldest night (TNn)
1927
-20.6 C (-5.1 F)
1928
-37.2 C (-35.0 F)
1929
-42.2 C (-44.0 F)
1930
-33.3 C (-27.9 F)
1931
-23.9 C (-11.0 F)
1932
-27.2 C (-17.0 F)
1933
-36.1 C (-33.0 F)
1934
-43.3 C (-45.9 F)
1935
-36.1 C (-33.0 F)
1936
-35.0 C (-31.0 F)
1937
-25.6 C (-14.1 F)
1938
-33.3 C (-27.9 F)
1939
-31.7 C (-25.1 F)
1940
-28.3 C (-18.9 F)
1941
-32.2 C (-26.0 F)
1942
-32.2 C (-26.0 F)
1943
-37.2 C (-35.0 F)
1944
-25.6 C (-14.1 F)
1945
-32.2 C (-26.0 F)
1946
-31.7 C (-25.1 F)
1947
-35.6 C (-32.1 F)
1948
-35.0 C (-31.0 F)
1949
-25.0 C (-13.0 F)
1950
-23.3 C (-9.9 F)
1951
-35.6 C (-32.1 F)
1952
-31.7 C (-25.1 F)
1953
-21.7 C (-7.1 F)
1954
-22.8 C (-9.0 F)
1955
-22.8 C (-9.0 F)
1956
-20.6 C (-5.1 F)
1957
-25.0 C (-13.0 F)
1958
-28.3 C (-18.9 F)
1959
-26.1 C (-15.0 F)
1960
-22.2 C (-8.0 F)
1961
-25.0 C (-13.0 F)
1962
-28.9 C (-20.0 F)
1963
-33.9 C (-29.0 F)
1964
-28.3 C (-18.9 F)
1965
-30.0 C (-22.0 F)
1966
-27.8 C (-18.0 F)
1967
-31.1 C (-24.0 F)
1968
-33.9 C (-29.0 F)
1969
-27.2 C (-17.0 F)
1970
-30.6 C (-23.1 F)
1971
-30.0 C (-22.0 F)
1972
-30.0 C (-22.0 F)
1973
-28.9 C (-20.0 F)
1974
-27.2 C (-17.0 F)
1975
-31.1 C (-24.0 F)
1976
-36.7 C (-34.1 F)
1977
-32.8 C (-27.0 F)
1978
-32.2 C (-26.0 F)
1979
-23.3 C (-9.9 F)
1980
-31.1 C (-24.0 F)
1981
-34.4 C (-29.9 F)
1982
-34.4 C (-29.9 F)
1983
-28.9 C (-20.0 F)
1984
-17.8 C (0.0 F)
1985
-25.6 C (-14.1 F)
1986
-30.0 C (-22.0 F)
1987
-22.2 C (-8.0 F)
1988
-23.3 C (-9.9 F)
1989
-23.3 C (-9.9 F)
1990
-26.1 C (-15.0 F)
1991
-21.1 C (-6.0 F)
1992
-23.9 C (-11.0 F)
1993
-27.2 C (-17.0 F)
1994
-30.0 C (-22.0 F)
1995
-26.7 C (-16.1 F)
1996
-33.3 C (-27.9 F)
1997
-28.9 C (-20.0 F)
1998
-20.6 C (-5.1 F)
1999
-25.0 C (-13.0 F)
2000
-23.9 C (-11.0 F)
2001
-18.9 C (-2.0 F)
2002
-21.7 C (-7.1 F)
2003
-28.9 C (-20.0 F)
2004
-25.6 C (-14.1 F)
Wettest day (Rx1day)
The wettest day of the year at Atlanta 5 WNW, 1927 to 2004. The record is 137.2 mm (5.4 in) in 1937, marked on the chart; the median year is 43.2 mm (1.7 in).
Wettest day (Rx1day) at Atlanta 5 WNW by year
Year
Wettest day (Rx1day)
1927
44.7 mm (1.8 in)
1928
33.0 mm (1.3 in)
1929
50.8 mm (2.0 in)
1930
41.9 mm (1.6 in)
1931
104.4 mm (4.1 in)
1932
57.9 mm (2.3 in)
1933
39.1 mm (1.5 in)
1934
36.6 mm (1.4 in)
1935
36.8 mm (1.4 in)
1936
67.1 mm (2.6 in)
1937
137.2 mm (5.4 in)
1938
32.3 mm (1.3 in)
1939
38.1 mm (1.5 in)
1940
41.9 mm (1.6 in)
1941
50.8 mm (2.0 in)
1942
44.7 mm (1.8 in)
1943
49.5 mm (1.9 in)
1944
55.1 mm (2.2 in)
1945
50.8 mm (2.0 in)
1946
74.9 mm (2.9 in)
1947
56.9 mm (2.2 in)
1948
37.3 mm (1.5 in)
1949
64.8 mm (2.6 in)
1950
50.5 mm (2.0 in)
1951
40.1 mm (1.6 in)
1952
36.3 mm (1.4 in)
1953
46.2 mm (1.8 in)
1954
36.6 mm (1.4 in)
1955
36.8 mm (1.4 in)
1956
43.2 mm (1.7 in)
1957
41.7 mm (1.6 in)
1958
31.8 mm (1.3 in)
1959
26.7 mm (1.1 in)
1960
37.6 mm (1.5 in)
1961
54.6 mm (2.1 in)
1962
45.7 mm (1.8 in)
1963
63.8 mm (2.5 in)
1964
48.3 mm (1.9 in)
1965
43.4 mm (1.7 in)
1966
42.4 mm (1.7 in)
1967
44.7 mm (1.8 in)
1968
52.3 mm (2.1 in)
1969
48.3 mm (1.9 in)
1970
43.7 mm (1.7 in)
1971
48.3 mm (1.9 in)
1972
55.1 mm (2.2 in)
1973
59.4 mm (2.3 in)
1974
22.9 mm (0.9 in)
1975
19.1 mm (0.8 in)
1976
23.4 mm (0.9 in)
1977
64.8 mm (2.6 in)
1978
40.9 mm (1.6 in)
1979
50.3 mm (2.0 in)
1980
41.1 mm (1.6 in)
1981
48.0 mm (1.9 in)
1982
30.7 mm (1.2 in)
1983
66.0 mm (2.6 in)
1984
39.4 mm (1.6 in)
1985
41.1 mm (1.6 in)
1986
64.5 mm (2.5 in)
1987
20.3 mm (0.8 in)
1988
15.2 mm (0.6 in)
1989
22.9 mm (0.9 in)
1990
50.8 mm (2.0 in)
1991
43.2 mm (1.7 in)
1992
30.5 mm (1.2 in)
1993
30.5 mm (1.2 in)
1994
31.5 mm (1.2 in)
1995
55.6 mm (2.2 in)
1996
26.4 mm (1.0 in)
1997
27.9 mm (1.1 in)
1998
48.8 mm (1.9 in)
1999
20.8 mm (0.8 in)
2000
42.7 mm (1.7 in)
2001
77.2 mm (3.0 in)
2002
51.1 mm (2.0 in)
2003
36.1 mm (1.4 in)
2004
38.6 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Atlanta 5 WNW, 1927 to 2004. The record is 177.3 mm (7.0 in) in 1937, marked on the chart; the median year is 65.0 mm (2.6 in).
Wettest five days (Rx5day) at Atlanta 5 WNW by year
Year
Wettest five days (Rx5day)
1927
67.5 mm (2.7 in)
1928
80.5 mm (3.2 in)
1929
78.0 mm (3.1 in)
1930
48.5 mm (1.9 in)
1931
105.7 mm (4.2 in)
1932
94.0 mm (3.7 in)
1933
62.0 mm (2.4 in)
1934
51.1 mm (2.0 in)
1935
57.7 mm (2.3 in)
1936
68.7 mm (2.7 in)
1937
177.3 mm (7.0 in)
1938
41.1 mm (1.6 in)
1939
55.4 mm (2.2 in)
1940
60.9 mm (2.4 in)
1941
65.0 mm (2.6 in)
1942
49.0 mm (1.9 in)
1943
64.3 mm (2.5 in)
1944
74.7 mm (2.9 in)
1945
73.1 mm (2.9 in)
1946
91.1 mm (3.6 in)
1947
63.5 mm (2.5 in)
1948
50.8 mm (2.0 in)
1949
105.4 mm (4.1 in)
1950
89.1 mm (3.5 in)
1951
85.9 mm (3.4 in)
1952
66.8 mm (2.6 in)
1953
69.9 mm (2.8 in)
1954
74.7 mm (2.9 in)
1955
47.7 mm (1.9 in)
1956
52.6 mm (2.1 in)
1957
67.8 mm (2.7 in)
1958
60.0 mm (2.4 in)
1959
59.4 mm (2.3 in)
1960
57.9 mm (2.3 in)
1961
66.1 mm (2.6 in)
1962
62.0 mm (2.4 in)
1963
102.7 mm (4.0 in)
1964
64.6 mm (2.5 in)
1965
69.6 mm (2.7 in)
1966
84.9 mm (3.3 in)
1967
65.0 mm (2.6 in)
1968
129.8 mm (5.1 in)
1969
85.4 mm (3.4 in)
1970
75.2 mm (3.0 in)
1971
58.5 mm (2.3 in)
1972
60.1 mm (2.4 in)
1973
68.7 mm (2.7 in)
1974
30.1 mm (1.2 in)
1975
38.9 mm (1.5 in)
1976
41.9 mm (1.6 in)
1977
64.8 mm (2.6 in)
1978
89.1 mm (3.5 in)
1979
51.3 mm (2.0 in)
1980
77.4 mm (3.0 in)
1981
64.6 mm (2.5 in)
1982
48.8 mm (1.9 in)
1983
80.5 mm (3.2 in)
1984
79.9 mm (3.1 in)
1985
99.1 mm (3.9 in)
1986
105.1 mm (4.1 in)
1987
57.9 mm (2.3 in)
1988
20.2 mm (0.8 in)
1989
43.7 mm (1.7 in)
1990
58.9 mm (2.3 in)
1991
57.4 mm (2.3 in)
1992
47.7 mm (1.9 in)
1993
43.1 mm (1.7 in)
1994
87.8 mm (3.5 in)
1995
102.9 mm (4.1 in)
1996
31.4 mm (1.2 in)
1997
49.8 mm (2.0 in)
1998
101.0 mm (4.0 in)
1999
73.6 mm (2.9 in)
2000
52.4 mm (2.1 in)
2001
80.5 mm (3.2 in)
2002
53.1 mm (2.1 in)
2003
71.7 mm (2.8 in)
2004
89.3 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Atlanta 5 WNW, 1927 to 2004. The record is 34 days in 1958, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Atlanta 5 WNW by year
Year
Longest dry spell (CDD)
1927
19 days
1928
16 days
1929
18 days
1930
21 days
1931
13 days
1932
19 days
1933
23 days
1934
16 days
1935
13 days
1936
19 days
1937
17 days
1938
14 days
1939
20 days
1940
14 days
1941
15 days
1942
14 days
1943
20 days
1944
19 days
1945
14 days
1946
16 days
1947
11 days
1948
22 days
1949
21 days
1950
23 days
1951
19 days
1952
26 days
1953
19 days
1954
24 days
1955
18 days
1956
17 days
1957
17 days
1958
34 days
1959
15 days
1960
13 days
1961
25 days
1962
25 days
1963
23 days
1964
14 days
1965
16 days
1966
15 days
1967
16 days
1968
18 days
1969
18 days
1970
19 days
1971
10 days
1972
18 days
1973
14 days
1974
10 days
1975
14 days
1976
13 days
1977
17 days
1978
9 days
1979
25 days
1980
13 days
1981
27 days
1982
16 days
1983
26 days
1984
16 days
1985
12 days
1986
23 days
1987
26 days
1988
15 days
1989
25 days
1990
20 days
1991
29 days
1992
24 days
1993
18 days
1994
18 days
1995
17 days
1996
23 days
1997
17 days
1998
28 days
1999
27 days
2000
31 days
2001
24 days
2002
20 days
2003
16 days
2004
19 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
52 years with a frost
Across 52 years with a frost, the median last spring frost at Atlanta 5 WNW falls on 29 May and the median first autumn frost on 18 September, which leaves a median of 110 days between them.
Fitted over all years, the growing season changes by +5.5 days per decade at this station.
Frost dates and growing season at Atlanta 5 WNW
Measure
Median, all years
Earliest period
Recent period (1953 to 2003)
Recent against earliest
Fitted trend
Last spring frost
29 May
n/a
24 May
n/a
-2.5 days per decade
First autumn frost
18 September
n/a
24 September
n/a
+3.0 days per decade
Growing days
110 days
n/a
123 days
n/a
+5.5 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
52 years, 1928 to 2003
A day with at least 44.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 118.9 mm (4.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Atlanta 5 WNW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
44.0 mm (1.7 in)
5 years
58.0 mm (2.3 in)
10 years
69.4 mm (2.7 in)
25 years
86.5 mm (3.4 in)
50 years
101.6 mm (4.0 in)
100 years
118.9 mm (4.7 in)
Longer than the 52 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 52 years of values from 1928 to 2003.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 137.2 mm (5.4 in) in 1937; 104.4 mm (4.1 in) in 1931; 77.2 mm (3.0 in) in 2001.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Atlanta 5 WNW, at 1953. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1953 ran 0.4 C (0.6 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Atlanta 5 WNW, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1953
+0.4
+0.6
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Atlanta 5 WNW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Atlanta 5 WNW threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.