Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Forest. 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 Forest, 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)
-27.2 C (-17.0 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-22.2 C (-8.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-13.3 C (8.1 F)
n/a
n/a
May
33.3 C (91.9 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
38.9 C (102.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
38.3 C (100.9 F)
3.3 C (37.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-5.6 C (21.9 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-23.3 C (-9.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Forest still stand. 1925 holds the most, with 64.
Standing records at Forest by the year they were set
Year set
Standing records
1924
16
1925
64
1926
62
1927
53
1928
39
1929
41
1930
48
1931
40
1932
40
1933
52
1934
59
1935
34
1936
64
1937
26
1938
27
1939
34
1940
33
1941
37
1942
44
1943
26
1944
27
1945
50
1946
32
1947
35
1948
25
1949
34
1950
39
1951
43
1952
23
1953
30
1954
26
1955
35
1956
15
1957
25
1958
12
1959
27
1960
28
1961
12
1962
35
1963
31
1964
41
All-Time Record Progression
2 new records
2 all-time records were set at Forest between 29 July 1959 and 4 March 1960. Each dot is a new record.
When Forest set new all-time records
Date
Kind
Detail
1959-07-29
Record daily precipitation
Record daily precipitation 88.6 mm (3.5 in)
1960-03-04
Record daily snowfall
Record daily snowfall 73.7 cm (29.0 in)
Wettest Day of Each Month
Jul: 88.6 mm (3.5 in)
The wettest day on record for each calendar month at Forest. The most was 88.6 mm (3.5 in) on 29 July 1959.
Record daily precipitation for each month at Forest
Month
Record daily precipitation (mm)
Date
Jan
28.4 mm (1.1 in)
8 January 1935
Feb
37.6 mm (1.5 in)
15 February 1954
Mar
73.7 mm (2.9 in)
4 March 1960
Apr
48.3 mm (1.9 in)
4 April 1947
May
59.7 mm (2.4 in)
23 May 1952
Jun
57.4 mm (2.3 in)
16 June 1946
Jul
88.6 mm (3.5 in)
29 July 1959
Aug
55.6 mm (2.2 in)
28 August 1950
Sep
63.0 mm (2.5 in)
21 September 1947
Oct
80.8 mm (3.2 in)
11 October 1949
Nov
55.9 mm (2.2 in)
21 November 1937
Dec
40.1 mm (1.6 in)
12 December 1946
Period of Record Coverage
1924 to 1964
Complete yearUnder 90 percent of days
41 years of record at Forest, 1924 to 1964. 2 years have data for under 90 percent of days and are left out of rankings: 1924, 1954.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Forest, 1925 to 1964. Blue stripes are years cooler than the station's own mean of 8.2 C (46.7 F); red stripes are warmer. The coolest year was 1926, at 6.3 C (43.3 F), and the warmest was 1931, at 9.6 C (49.2 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Forest as warming stripes, 1925 to 1964
Year
Annual mean temperature
Difference from the station mean
1925
7.5 C
-0.73 C
1926
6.3 C
-1.94 C
1927
8.0 C
-0.20 C
1928
7.8 C
-0.39 C
1929
7.6 C
-0.61 C
1930
8.6 C
+0.41 C
1931
9.6 C
+1.37 C
1932
8.4 C
+0.17 C
1933
8.7 C
+0.48 C
1934
7.5 C
-0.66 C
1935
7.5 C
-0.74 C
1936
7.4 C
-0.83 C
1937
7.8 C
-0.39 C
1939
9.1 C
+0.87 C
1940
7.8 C
-0.42 C
1941
9.4 C
+1.16 C
1942
8.3 C
+0.12 C
1943
7.3 C
-0.87 C
1944
8.4 C
+0.25 C
1945
7.8 C
-0.40 C
1946
8.9 C
+0.69 C
1947
8.0 C
-0.23 C
1948
8.3 C
+0.07 C
1949
9.5 C
+1.27 C
1950
7.5 C
-0.67 C
1951
7.8 C
-0.36 C
1952
8.6 C
+0.39 C
1953
9.2 C
+0.99 C
1956
8.4 C
+0.22 C
1957
8.5 C
+0.35 C
1958
8.1 C
-0.09 C
1959
8.6 C
+0.36 C
1960
7.9 C
-0.32 C
1961
8.4 C
+0.19 C
1964
8.6 C
+0.42 C
The fitted trend in annual mean temperature here over 1925 to 1964 is 0.19 C (-0.02 to 0.40) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.35 F (-0.03 to 0.72) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Forest
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.19 C (-0.02 to 0.40) per decade
0.35 F (-0.03 to 0.72) per decade
1925 to 1964
35
Not clearly different from zero
Mean daily maximum
0.31 C (0.04 to 0.59) per decade
0.6 F (0.1 to 1.1) per decade
1925 to 1964
35
Rise
Mean daily minimum
0.1 C (-0.1 to 0.3) per decade
0.1 F (-0.3 to 0.5) per decade
1925 to 1964
35
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
1924 to 1964
Yearly extremes at Forest: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1936
35.6 C (96.1 F)
41
Coldest night (TNn)
-30.6 C (-23.1 F)
1934
-21.1 C (-6.0 F)
41
Wettest day (Rx1day)
88.6 mm (3.5 in)
1959
45.5 mm (1.8 in)
41
Wettest five days (Rx5day)
115.7 mm (4.6 in)
1954
69.1 mm (2.7 in)
41
Longest dry spell (CDD)
29 days
1963
17 days
41
Hottest day (TXx)
The hottest day of the year at Forest, 1924 to 1964. The record is 38.9 C (102.0 F) in 1936, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Forest by year
Year
Hottest day (TXx)
1924
26.1 C (79.0 F)
1925
35.6 C (96.1 F)
1926
36.1 C (97.0 F)
1927
35.6 C (96.1 F)
1928
32.8 C (91.0 F)
1929
35.6 C (96.1 F)
1930
37.2 C (99.0 F)
1931
36.7 C (98.1 F)
1932
33.3 C (91.9 F)
1933
36.1 C (97.0 F)
1934
37.8 C (100.0 F)
1935
35.0 C (95.0 F)
1936
38.9 C (102.0 F)
1937
33.9 C (93.0 F)
1938
33.9 C (93.0 F)
1939
37.2 C (99.0 F)
1940
35.6 C (96.1 F)
1941
36.1 C (97.0 F)
1942
35.6 C (96.1 F)
1943
35.6 C (96.1 F)
1944
38.3 C (100.9 F)
1945
32.8 C (91.0 F)
1946
35.6 C (96.1 F)
1947
35.0 C (95.0 F)
1948
37.8 C (100.0 F)
1949
36.7 C (98.1 F)
1950
33.9 C (93.0 F)
1951
33.9 C (93.0 F)
1952
36.7 C (98.1 F)
1953
37.8 C (100.0 F)
1954
33.9 C (93.0 F)
1955
36.7 C (98.1 F)
1956
33.9 C (93.0 F)
1957
33.9 C (93.0 F)
1958
32.2 C (90.0 F)
1959
32.8 C (91.0 F)
1960
33.3 C (91.9 F)
1961
31.7 C (89.1 F)
1962
31.7 C (89.1 F)
1963
34.4 C (93.9 F)
1964
33.9 C (93.0 F)
Coldest night (TNn)
The coldest night of the year at Forest, 1924 to 1964. The record is -30.6 C (-23.1 F) in 1934, marked on the chart; the median year is -21.1 C (-6.0 F).
Coldest night (TNn) at Forest by year
Year
Coldest night (TNn)
1924
-20.6 C (-5.1 F)
1925
-27.2 C (-17.0 F)
1926
-21.1 C (-6.0 F)
1927
-25.0 C (-13.0 F)
1928
-23.9 C (-11.0 F)
1929
-28.3 C (-18.9 F)
1930
-22.2 C (-8.0 F)
1931
-16.7 C (1.9 F)
1932
-17.8 C (0.0 F)
1933
-24.4 C (-11.9 F)
1934
-30.6 C (-23.1 F)
1935
-25.6 C (-14.1 F)
1936
-25.6 C (-14.1 F)
1937
-20.6 C (-5.1 F)
1938
-18.9 C (-2.0 F)
1939
-17.2 C (1.0 F)
1940
-21.1 C (-6.0 F)
1941
-15.6 C (3.9 F)
1942
-21.7 C (-7.1 F)
1943
-26.7 C (-16.1 F)
1944
-19.4 C (-2.9 F)
1945
-20.6 C (-5.1 F)
1946
-20.0 C (-4.0 F)
1947
-18.3 C (-0.9 F)
1948
-24.4 C (-11.9 F)
1949
-17.8 C (0.0 F)
1950
-21.7 C (-7.1 F)
1951
-23.3 C (-9.9 F)
1952
-18.9 C (-2.0 F)
1953
-16.1 C (3.0 F)
1954
-19.4 C (-2.9 F)
1955
-18.3 C (-0.9 F)
1956
-16.7 C (1.9 F)
1957
-22.2 C (-8.0 F)
1958
-21.7 C (-7.1 F)
1959
-22.2 C (-8.0 F)
1960
-21.1 C (-6.0 F)
1961
-25.0 C (-13.0 F)
1962
-22.2 C (-8.0 F)
1963
-25.6 C (-14.1 F)
1964
-17.2 C (1.0 F)
Wettest day (Rx1day)
The wettest day of the year at Forest, 1924 to 1964. The record is 88.6 mm (3.5 in) in 1959, marked on the chart; the median year is 45.5 mm (1.8 in).
Wettest day (Rx1day) at Forest by year
Year
Wettest day (Rx1day)
1924
22.1 mm (0.9 in)
1925
47.5 mm (1.9 in)
1926
29.7 mm (1.2 in)
1927
53.8 mm (2.1 in)
1928
51.1 mm (2.0 in)
1929
40.9 mm (1.6 in)
1930
26.2 mm (1.0 in)
1931
45.2 mm (1.8 in)
1932
55.9 mm (2.2 in)
1933
38.9 mm (1.5 in)
1934
22.9 mm (0.9 in)
1935
44.5 mm (1.8 in)
1936
38.9 mm (1.5 in)
1937
55.9 mm (2.2 in)
1938
32.8 mm (1.3 in)
1939
26.9 mm (1.1 in)
1940
37.1 mm (1.5 in)
1941
30.5 mm (1.2 in)
1942
55.4 mm (2.2 in)
1943
51.3 mm (2.0 in)
1944
22.6 mm (0.9 in)
1945
44.7 mm (1.8 in)
1946
57.4 mm (2.3 in)
1947
63.0 mm (2.5 in)
1948
42.2 mm (1.7 in)
1949
80.8 mm (3.2 in)
1950
55.6 mm (2.2 in)
1951
80.5 mm (3.2 in)
1952
59.7 mm (2.4 in)
1953
55.1 mm (2.2 in)
1954
55.4 mm (2.2 in)
1955
45.5 mm (1.8 in)
1956
48.5 mm (1.9 in)
1957
41.1 mm (1.6 in)
1958
36.6 mm (1.4 in)
1959
88.6 mm (3.5 in)
1960
73.7 mm (2.9 in)
1961
56.6 mm (2.2 in)
1962
45.2 mm (1.8 in)
1963
21.3 mm (0.8 in)
1964
55.9 mm (2.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Forest, 1924 to 1964. The record is 115.7 mm (4.6 in) in 1954, marked on the chart; the median year is 69.1 mm (2.7 in).
Wettest five days (Rx5day) at Forest by year
Year
Wettest five days (Rx5day)
1924
29.5 mm (1.2 in)
1925
64.7 mm (2.5 in)
1926
56.9 mm (2.2 in)
1927
82.0 mm (3.2 in)
1928
68.6 mm (2.7 in)
1929
77.8 mm (3.1 in)
1930
47.1 mm (1.9 in)
1931
63.1 mm (2.5 in)
1932
72.4 mm (2.9 in)
1933
57.1 mm (2.2 in)
1934
47.5 mm (1.9 in)
1935
65.6 mm (2.6 in)
1936
50.2 mm (2.0 in)
1937
58.2 mm (2.3 in)
1938
43.0 mm (1.7 in)
1939
57.6 mm (2.3 in)
1940
59.0 mm (2.3 in)
1941
58.1 mm (2.3 in)
1942
84.1 mm (3.3 in)
1943
74.7 mm (2.9 in)
1944
40.6 mm (1.6 in)
1945
113.0 mm (4.4 in)
1946
93.9 mm (3.7 in)
1947
84.4 mm (3.3 in)
1948
88.5 mm (3.5 in)
1949
82.8 mm (3.3 in)
1950
81.2 mm (3.2 in)
1951
93.2 mm (3.7 in)
1952
97.4 mm (3.8 in)
1953
98.0 mm (3.9 in)
1954
115.7 mm (4.6 in)
1955
57.7 mm (2.3 in)
1956
69.1 mm (2.7 in)
1957
74.6 mm (2.9 in)
1958
51.3 mm (2.0 in)
1959
88.6 mm (3.5 in)
1960
102.4 mm (4.0 in)
1961
84.4 mm (3.3 in)
1962
65.5 mm (2.6 in)
1963
37.6 mm (1.5 in)
1964
83.2 mm (3.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Forest, 1924 to 1964. The record is 29 days in 1963, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Forest by year
Year
Longest dry spell (CDD)
1924
23 days
1925
19 days
1926
15 days
1927
16 days
1928
12 days
1929
28 days
1930
28 days
1931
11 days
1932
13 days
1933
21 days
1934
18 days
1935
18 days
1936
22 days
1937
12 days
1938
11 days
1939
17 days
1940
14 days
1941
20 days
1942
19 days
1943
19 days
1944
19 days
1945
13 days
1946
15 days
1947
16 days
1948
15 days
1949
18 days
1950
21 days
1951
10 days
1952
15 days
1953
26 days
1954
15 days
1955
18 days
1956
19 days
1957
16 days
1958
15 days
1959
13 days
1960
13 days
1961
17 days
1962
20 days
1963
29 days
1964
12 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Forest falls on 10 May and the median first autumn frost on 13 October, which leaves a median of 160 days between them.
Fitted over all years, the growing season changes by +2.3 days per decade at this station.
Frost dates and growing season at Forest
Measure
Median, all years
Earliest period
Recent period (1930 to 1964)
Recent against earliest
Fitted trend
Last spring frost
10 May
n/a
10 May
n/a
-0.7 days per decade
First autumn frost
13 October
n/a
13 October
n/a
+1.6 days per decade
Growing days
160 days
n/a
160 days
n/a
+2.3 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
37 years, 1926 to 1964
A day with at least 46.4 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 90.9 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Forest: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.4 mm (1.8 in)
5 years
61.3 mm (2.4 in)
10 years
69.8 mm (2.7 in)
25 years
79.2 mm (3.1 in)
50 years
85.4 mm (3.4 in)
Longer than the 37 years of record
100 years
90.9 mm (3.6 in)
Longer than the 37 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, 37 years of values from 1926 to 1964.
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: 88.6 mm (3.5 in) in 1959; 80.8 mm (3.2 in) in 1949; 80.5 mm (3.2 in) in 1951.
Download the Data
Data for Forest standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Forest 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.