Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Brooks Ahrc. 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 Brooks Ahrc, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-46.7 C (-52.1 F)
n/a
n/a
Feb
17.2 C (63.0 F)
-43.9 C (-47.0 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-25.0 C (-13.0 F)
n/a
n/a
May
35.6 C (96.1 F)
-9.5 C (14.9 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
40.0 C (104.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
38.9 C (102.0 F)
0.0 C (32.0 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-10.6 C (12.9 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Nov
23.5 C (74.3 F)
-36.1 C (-33.0 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-47.2 C (-53.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Brooks Ahrc still stand. 1936 holds the most, with 61.
Standing records at Brooks Ahrc by the year they were set
Year set
Standing records
1915
16
1916
40
1917
29
1918
42
1919
50
1920
18
1921
21
1922
21
1923
21
1924
37
1925
25
1926
26
1927
26
1928
31
1929
20
1930
29
1931
37
1932
33
1933
14
1934
33
1935
20
1936
61
1937
11
1953
10
1954
43
1955
22
1956
27
1957
21
1958
24
1959
25
1960
18
1961
23
1962
30
1963
32
1964
25
1965
30
1966
23
1967
34
1968
39
1969
31
1970
24
1971
19
1972
21
1973
29
1974
11
1975
24
1976
23
1977
31
1978
16
1979
26
1980
30
1981
35
1982
25
1983
32
All-Time Record Progression
1 new records
1 all-time records were set at Brooks Ahrc between 23 January 1969 and 23 January 1969. Each dot is a new record.
When Brooks Ahrc set new all-time records
Date
Kind
Detail
1969-01-23
Record low maximum temperature
Record low maximum temperature -38.3 C (-36.9 F)
Wettest Day of Each Month
Jun: 88.9 mm (3.5 in)
The wettest day on record for each calendar month at Brooks Ahrc. The most was 88.9 mm (3.5 in) on 2 June 1953.
Record daily precipitation for each month at Brooks Ahrc
Month
Record daily precipitation (mm)
Date
Jan
16.5 mm (0.6 in)
9 January 1964
Feb
16.5 mm (0.6 in)
12 February 1958
Mar
21.6 mm (0.9 in)
16 March 1927
Apr
34.0 mm (1.3 in)
23 April 1925
May
29.2 mm (1.1 in)
14 May 1915
Jun
88.9 mm (3.5 in)
2 June 1953
Jul
36.8 mm (1.4 in)
5 July 1927
Aug
45.5 mm (1.8 in)
25 August 1965
Sep
48.3 mm (1.9 in)
4 September 1916
Oct
22.9 mm (0.9 in)
12 October 1966
Nov
22.9 mm (0.9 in)
14 November 1965
Dec
30.5 mm (1.2 in)
28 December 1917
Period of Record Coverage
1915 to 1983
Complete yearUnder 90 percent of days
54 years of record at Brooks Ahrc, 1915 to 1983. 5 years have data for under 90 percent of days and are left out of rankings: 1915, 1919, 1921, 1937, 1953.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Brooks Ahrc, 1922 to 1983. Blue stripes are years cooler than the station's own mean of 3.9 C (39.1 F); red stripes are warmer. The coolest year was 1955, at 1.9 C (35.3 F), and the warmest was 1931, at 6.7 C (44.0 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Brooks Ahrc as warming stripes, 1922 to 1983
Year
Annual mean temperature
Difference from the station mean
1922
3.3 C
-0.64 C
1923
4.7 C
+0.74 C
1924
3.7 C
-0.21 C
1925
3.9 C
-0.03 C
1926
4.8 C
+0.84 C
1927
1.9 C
-2.00 C
1928
5.4 C
+1.50 C
1929
3.6 C
-0.34 C
1930
5.5 C
+1.60 C
1931
6.7 C
+2.75 C
1932
4.0 C
+0.09 C
1933
3.8 C
-0.17 C
1934
5.7 C
+1.80 C
1935
3.1 C
-0.86 C
1936
3.7 C
-0.26 C
1954
3.8 C
-0.12 C
1955
1.9 C
-2.07 C
1956
2.9 C
-1.05 C
1957
4.1 C
+0.19 C
1958
4.6 C
+0.72 C
1959
3.5 C
-0.44 C
1960
4.1 C
+0.19 C
1961
5.0 C
+1.12 C
1962
4.6 C
+0.66 C
1963
5.2 C
+1.26 C
1964
3.9 C
-0.06 C
1965
2.7 C
-1.27 C
1966
2.8 C
-1.16 C
1967
3.6 C
-0.28 C
1968
4.3 C
+0.35 C
1969
2.7 C
-1.20 C
1970
2.9 C
-1.05 C
1971
3.3 C
-0.62 C
1972
2.5 C
-1.44 C
1973
4.3 C
+0.40 C
1974
4.4 C
+0.51 C
1975
2.6 C
-1.29 C
1976
5.5 C
+1.59 C
1977
5.0 C
+1.03 C
1978
2.9 C
-1.04 C
1979
3.6 C
-0.37 C
1980
4.0 C
+0.10 C
1981
6.0 C
+2.03 C
1982
2.2 C
-1.72 C
1983
4.3 C
+0.36 C
The fitted trend in annual mean temperature here over 1922 to 1983 is -0.1 C (-0.2 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.4 to 0.1) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Brooks Ahrc
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.2 to 0.1) per decade
-0.2 F (-0.4 to 0.1) per decade
1922 to 1983
45
Not clearly different from zero
Mean daily maximum
-0.16 C (-0.36 to 0.04) per decade
-0.3 F (-0.6 to 0.1) per decade
1922 to 1983
45
Not clearly different from zero
Mean daily minimum
-0.01 C (-0.15 to 0.13) per decade
-0.01 F (-0.27 to 0.24) per decade
1922 to 1983
45
Not clearly different from zero
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
1915 to 1983
Yearly extremes at Brooks Ahrc: 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)
1918
35.6 C (96.1 F)
54
Coldest night (TNn)
-47.2 C (-53.0 F)
1924
-38.3 C (-36.9 F)
54
Wettest day (Rx1day)
88.9 mm (3.5 in)
1953
27.7 mm (1.1 in)
54
Wettest five days (Rx5day)
112.8 mm (4.4 in)
1953
38.0 mm (1.5 in)
54
Longest dry spell (CDD)
71 days
1967
36 days
54
Hottest day (TXx)
The hottest day of the year at Brooks Ahrc, 1915 to 1983. The record is 40.0 C (104.0 F) in 1918, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Brooks Ahrc by year
Year
Hottest day (TXx)
1915
37.2 C (99.0 F)
1916
33.3 C (91.9 F)
1917
37.8 C (100.0 F)
1918
40.0 C (104.0 F)
1919
38.9 C (102.0 F)
1920
38.9 C (102.0 F)
1921
38.3 C (100.9 F)
1922
35.6 C (96.1 F)
1923
33.9 C (93.0 F)
1924
35.6 C (96.1 F)
1925
35.6 C (96.1 F)
1926
36.7 C (98.1 F)
1927
32.2 C (90.0 F)
1928
34.4 C (93.9 F)
1929
37.2 C (99.0 F)
1930
37.8 C (100.0 F)
1931
38.3 C (100.9 F)
1932
35.0 C (95.0 F)
1933
37.8 C (100.0 F)
1934
36.1 C (97.0 F)
1935
37.2 C (99.0 F)
1936
37.2 C (99.0 F)
1937
37.8 C (100.0 F)
1953
36.7 C (98.1 F)
1954
35.6 C (96.1 F)
1955
35.6 C (96.1 F)
1956
34.4 C (93.9 F)
1957
33.9 C (93.0 F)
1958
33.9 C (93.0 F)
1959
33.9 C (93.0 F)
1960
36.7 C (98.1 F)
1961
37.8 C (100.0 F)
1962
33.3 C (91.9 F)
1963
33.3 C (91.9 F)
1964
35.0 C (95.0 F)
1965
33.3 C (91.9 F)
1966
32.2 C (90.0 F)
1967
35.6 C (96.1 F)
1968
35.0 C (95.0 F)
1969
35.0 C (95.0 F)
1970
35.0 C (95.0 F)
1971
36.1 C (97.0 F)
1972
33.3 C (91.9 F)
1973
36.7 C (98.1 F)
1974
34.4 C (93.9 F)
1975
35.6 C (96.1 F)
1976
33.9 C (93.0 F)
1977
33.3 C (91.9 F)
1978
35.0 C (95.0 F)
1979
34.5 C (94.1 F)
1980
33.5 C (92.3 F)
1981
33.5 C (92.3 F)
1982
32.5 C (90.5 F)
1983
37.5 C (99.5 F)
Coldest night (TNn)
The coldest night of the year at Brooks Ahrc, 1915 to 1983. The record is -47.2 C (-53.0 F) in 1924, marked on the chart; the median year is -38.3 C (-36.9 F).
Coldest night (TNn) at Brooks Ahrc by year
Year
Coldest night (TNn)
1915
-25.6 C (-14.1 F)
1916
-46.7 C (-52.1 F)
1917
-42.8 C (-45.0 F)
1918
-41.7 C (-43.1 F)
1919
-36.1 C (-33.0 F)
1920
-42.8 C (-45.0 F)
1921
-31.7 C (-25.1 F)
1922
-37.2 C (-35.0 F)
1923
-38.3 C (-36.9 F)
1924
-47.2 C (-53.0 F)
1925
-31.1 C (-24.0 F)
1926
-33.3 C (-27.9 F)
1927
-41.1 C (-42.0 F)
1928
-38.9 C (-38.0 F)
1929
-43.3 C (-45.9 F)
1930
-37.8 C (-36.0 F)
1931
-27.8 C (-18.0 F)
1932
-33.3 C (-27.9 F)
1933
-35.0 C (-31.0 F)
1934
-35.6 C (-32.1 F)
1935
-38.9 C (-38.0 F)
1936
-43.9 C (-47.0 F)
1937
-40.0 C (-40.0 F)
1953
-24.4 C (-11.9 F)
1954
-43.3 C (-45.9 F)
1955
-33.9 C (-29.0 F)
1956
-42.8 C (-45.0 F)
1957
-41.1 C (-42.0 F)
1958
-36.1 C (-33.0 F)
1959
-33.3 C (-27.9 F)
1960
-34.4 C (-29.9 F)
1961
-33.9 C (-29.0 F)
1962
-35.0 C (-31.0 F)
1963
-37.8 C (-36.0 F)
1964
-40.6 C (-41.1 F)
1965
-35.6 C (-32.1 F)
1966
-39.4 C (-38.9 F)
1967
-34.4 C (-29.9 F)
1968
-40.0 C (-40.0 F)
1969
-44.4 C (-47.9 F)
1970
-43.3 C (-45.9 F)
1971
-38.9 C (-38.0 F)
1972
-41.1 C (-42.0 F)
1973
-31.7 C (-25.1 F)
1974
-38.3 C (-36.9 F)
1975
-38.3 C (-36.9 F)
1976
-34.4 C (-29.9 F)
1977
-43.9 C (-47.0 F)
1978
-37.2 C (-35.0 F)
1979
-38.5 C (-37.3 F)
1980
-38.0 C (-36.4 F)
1981
-31.5 C (-24.7 F)
1982
-39.0 C (-38.2 F)
1983
-42.0 C (-43.6 F)
Wettest day (Rx1day)
The wettest day of the year at Brooks Ahrc, 1915 to 1983. The record is 88.9 mm (3.5 in) in 1953, marked on the chart; the median year is 27.7 mm (1.1 in).
Wettest day (Rx1day) at Brooks Ahrc by year
Year
Wettest day (Rx1day)
1915
29.5 mm (1.2 in)
1916
48.3 mm (1.9 in)
1917
30.5 mm (1.2 in)
1918
17.0 mm (0.7 in)
1919
27.9 mm (1.1 in)
1920
19.8 mm (0.8 in)
1921
24.9 mm (1.0 in)
1922
20.3 mm (0.8 in)
1923
34.3 mm (1.4 in)
1924
20.1 mm (0.8 in)
1925
34.0 mm (1.3 in)
1926
25.9 mm (1.0 in)
1927
36.8 mm (1.4 in)
1928
34.8 mm (1.4 in)
1929
10.2 mm (0.4 in)
1930
42.4 mm (1.7 in)
1931
20.8 mm (0.8 in)
1932
22.9 mm (0.9 in)
1933
27.4 mm (1.1 in)
1934
21.3 mm (0.8 in)
1935
26.2 mm (1.0 in)
1936
21.1 mm (0.8 in)
1937
10.4 mm (0.4 in)
1953
88.9 mm (3.5 in)
1954
28.4 mm (1.1 in)
1955
18.3 mm (0.7 in)
1956
40.6 mm (1.6 in)
1957
17.8 mm (0.7 in)
1958
25.4 mm (1.0 in)
1959
21.3 mm (0.8 in)
1960
25.4 mm (1.0 in)
1961
18.8 mm (0.7 in)
1962
20.8 mm (0.8 in)
1963
56.1 mm (2.2 in)
1964
26.9 mm (1.1 in)
1965
46.7 mm (1.8 in)
1966
31.2 mm (1.2 in)
1967
30.7 mm (1.2 in)
1968
31.8 mm (1.3 in)
1969
17.3 mm (0.7 in)
1970
42.4 mm (1.7 in)
1971
31.0 mm (1.2 in)
1972
15.2 mm (0.6 in)
1973
51.1 mm (2.0 in)
1974
19.1 mm (0.8 in)
1975
38.4 mm (1.5 in)
1976
33.8 mm (1.3 in)
1977
47.5 mm (1.9 in)
1978
38.8 mm (1.5 in)
1979
24.7 mm (1.0 in)
1980
26.1 mm (1.0 in)
1981
35.4 mm (1.4 in)
1982
37.7 mm (1.5 in)
1983
28.6 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Brooks Ahrc, 1915 to 1983. The record is 112.8 mm (4.4 in) in 1953, marked on the chart; the median year is 38.0 mm (1.5 in).
Wettest five days (Rx5day) at Brooks Ahrc by year
Year
Wettest five days (Rx5day)
1915
71.9 mm (2.8 in)
1916
57.2 mm (2.3 in)
1917
30.5 mm (1.2 in)
1918
30.5 mm (1.2 in)
1919
44.4 mm (1.7 in)
1920
25.4 mm (1.0 in)
1921
27.4 mm (1.1 in)
1922
22.0 mm (0.9 in)
1923
55.6 mm (2.2 in)
1924
32.5 mm (1.3 in)
1925
53.2 mm (2.1 in)
1926
33.7 mm (1.3 in)
1927
39.2 mm (1.5 in)
1928
61.0 mm (2.4 in)
1929
16.5 mm (0.6 in)
1930
42.4 mm (1.7 in)
1931
20.8 mm (0.8 in)
1932
60.0 mm (2.4 in)
1933
37.8 mm (1.5 in)
1934
30.7 mm (1.2 in)
1935
44.8 mm (1.8 in)
1936
29.8 mm (1.2 in)
1937
16.5 mm (0.6 in)
1953
112.8 mm (4.4 in)
1954
47.4 mm (1.9 in)
1955
32.0 mm (1.3 in)
1956
56.9 mm (2.2 in)
1957
25.4 mm (1.0 in)
1958
37.6 mm (1.5 in)
1959
37.8 mm (1.5 in)
1960
33.5 mm (1.3 in)
1961
22.4 mm (0.9 in)
1962
35.7 mm (1.4 in)
1963
74.4 mm (2.9 in)
1964
44.2 mm (1.7 in)
1965
87.9 mm (3.5 in)
1966
38.1 mm (1.5 in)
1967
63.8 mm (2.5 in)
1968
65.6 mm (2.6 in)
1969
31.7 mm (1.2 in)
1970
100.8 mm (4.0 in)
1971
32.0 mm (1.3 in)
1972
25.1 mm (1.0 in)
1973
109.3 mm (4.3 in)
1974
32.6 mm (1.3 in)
1975
52.5 mm (2.1 in)
1976
33.8 mm (1.3 in)
1977
51.3 mm (2.0 in)
1978
55.0 mm (2.2 in)
1979
29.5 mm (1.2 in)
1980
50.6 mm (2.0 in)
1981
43.3 mm (1.7 in)
1982
63.1 mm (2.5 in)
1983
35.6 mm (1.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Brooks Ahrc, 1915 to 1983. The record is 71 days in 1967, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Brooks Ahrc by year
Year
Longest dry spell (CDD)
1915
32 days
1916
31 days
1917
44 days
1918
36 days
1919
32 days
1920
37 days
1921
19 days
1922
31 days
1923
37 days
1924
30 days
1925
42 days
1926
34 days
1927
26 days
1928
51 days
1929
25 days
1930
30 days
1931
39 days
1932
24 days
1933
29 days
1934
31 days
1935
20 days
1936
52 days
1937
30 days
1953
43 days
1954
53 days
1955
27 days
1956
24 days
1957
40 days
1958
41 days
1959
45 days
1960
44 days
1961
38 days
1962
37 days
1963
43 days
1964
42 days
1965
44 days
1966
42 days
1967
71 days
1968
36 days
1969
31 days
1970
25 days
1971
42 days
1972
27 days
1973
39 days
1974
41 days
1975
19 days
1976
48 days
1977
58 days
1978
27 days
1979
30 days
1980
29 days
1981
27 days
1982
23 days
1983
43 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
45 years with a frost
Across 45 years with a frost, the median last spring frost at Brooks Ahrc falls on 20 May and the median first autumn frost on 14 September, which leaves a median of 116 days between them.
Fitted over all years, the growing season changes by +0.1 days per decade at this station.
Frost dates and growing season at Brooks Ahrc
Measure
Median, all years
Earliest period
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
21 May
n/a
-0.1 days per decade
First autumn frost
14 September
n/a
13 September
n/a
0.0 days per decade
Growing days
116 days
n/a
115 days
n/a
+0.1 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
43 years, 1916 to 1983
A day with at least 29.2 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 60.6 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Brooks Ahrc: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
29.2 mm (1.1 in)
5 years
39.1 mm (1.5 in)
10 years
45.0 mm (1.8 in)
25 years
51.8 mm (2.0 in)
50 years
56.4 mm (2.2 in)
Longer than the 43 years of record
100 years
60.6 mm (2.4 in)
Longer than the 43 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, 43 years of values from 1916 to 1983.
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: 56.1 mm (2.2 in) in 1963; 51.1 mm (2.0 in) in 1973; 48.3 mm (1.9 in) in 1916.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Brooks Ahrc standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Brooks Ahrc 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.