Record envelope, standing records and threshold days for Colebrook (USC00361652), Pennsylvania, United States, with 34 years of record.
Key Facts for Colebrook
Colebrook (USC00361652) is a weather station in Pennsylvania, United States at 40.25 latitude and -76.47 longitude, 171 m (560 ft) above sea level.
The station reports from 1910 to 1943, 34 years of record.
1,464 records set at Colebrook still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Colebrook set a daily record precipitation of 26.7 mm (1.1 in) on 28 January 1943.
About the Station
Location: Pennsylvania, United States, 40.25 latitude, -76.47 longitude.
Elevation: 171 m (560 ft).
Period of record: 1910 to 1943, 34 years.
Eligible elements: prcp.
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 Colebrook. 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 Colebrook, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
21.1 C (70.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Feb
23.3 C (73.9 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-13.3 C (8.1 F)
n/a
n/a
May
33.9 C (93.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
37.8 C (100.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
38.3 C (100.9 F)
3.9 C (39.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
4.4 C (39.9 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-16.7 C (1.9 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-22.8 C (-9.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Colebrook still stand. 1918 holds the most, with 76.
Standing records at Colebrook by the year they were set
Year set
Standing records
1910
30
1911
8
1912
6
1913
3
1914
6
1916
32
1917
63
1918
76
1919
54
1920
52
1921
64
1922
39
1923
54
1924
38
1925
61
1926
50
1927
55
1928
47
1929
63
1930
74
1931
47
1932
72
1933
48
1934
51
1935
50
1936
72
1937
28
1938
46
1939
34
1940
48
1941
49
1942
42
1943
2
Wettest Day of Each Month
Jul: 152.1 mm (6.0 in)
The wettest day on record for each calendar month at Colebrook. The most was 152.1 mm (6.0 in) on 25 July 1925.
Record daily precipitation for each month at Colebrook
Month
Record daily precipitation (mm)
Date
Jan
48.0 mm (1.9 in)
13 January 1915
Feb
67.3 mm (2.6 in)
20 February 1924
Mar
65.3 mm (2.6 in)
27 March 1913
Apr
66.8 mm (2.6 in)
28 April 1928
May
81.3 mm (3.2 in)
21 May 1942
Jun
75.9 mm (3.0 in)
7 June 1942
Jul
152.1 mm (6.0 in)
25 July 1925
Aug
143.8 mm (5.7 in)
24 August 1933
Sep
102.4 mm (4.0 in)
30 September 1934
Oct
93.5 mm (3.7 in)
6 October 1932
Nov
87.6 mm (3.4 in)
16 November 1926
Dec
51.1 mm (2.0 in)
7 December 1914
Period of Record Coverage
1910 to 1943
Complete yearUnder 90 percent of days
33 years of record at Colebrook, 1910 to 1943. 7 years have data for under 90 percent of days and are left out of rankings: 1910, 1911, 1912, 1913, 1914, 1916, 1943.
Cooler than the station meanWarmer than the station mean
One stripe for each of 25 complete years at Colebrook, 1917 to 1942. Blue stripes are years cooler than the station's own mean of 10.2 C (50.4 F); red stripes are warmer. The coolest year was 1917, at 8.9 C (48.0 F), and the warmest was 1921, at 12.1 C (53.8 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Colebrook as warming stripes, 1917 to 1942
Year
Annual mean temperature
Difference from the station mean
1917
8.9 C
-1.35 C
1918
10.2 C
-0.03 C
1919
10.7 C
+0.43 C
1920
10.1 C
-0.15 C
1921
12.1 C
+1.88 C
1922
11.0 C
+0.75 C
1923
10.5 C
+0.26 C
1924
9.5 C
-0.76 C
1925
10.2 C
-0.04 C
1926
9.3 C
-0.94 C
1927
10.4 C
+0.16 C
1929
10.1 C
-0.17 C
1930
10.5 C
+0.30 C
1931
11.3 C
+1.02 C
1932
10.6 C
+0.34 C
1933
10.2 C
-0.05 C
1934
9.7 C
-0.56 C
1935
9.6 C
-0.67 C
1936
9.7 C
-0.58 C
1937
9.9 C
-0.30 C
1938
10.4 C
+0.12 C
1939
10.9 C
+0.66 C
1940
9.0 C
-1.20 C
1941
10.7 C
+0.50 C
1942
10.5 C
+0.26 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1910 to 1943
Yearly extremes at Colebrook: 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)
1918
35.0 C (95.0 F)
33
Coldest night (TNn)
-25.6 C (-14.1 F)
1934
-17.8 C (0.0 F)
33
Wettest day (Rx1day)
152.1 mm (6.0 in)
1925
67.8 mm (2.7 in)
34
Wettest five days (Rx5day)
217.0 mm (8.5 in)
1933
102.0 mm (4.0 in)
34
Longest dry spell (CDD)
43 days
1924
16 days
34
Hottest day (TXx)
The hottest day of the year at Colebrook, 1910 to 1943. The record is 38.9 C (102.0 F) in 1918, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Colebrook by year
Year
Hottest day (TXx)
1910
33.3 C (91.9 F)
1911
30.6 C (87.1 F)
1912
32.8 C (91.0 F)
1913
13.3 C (55.9 F)
1914
23.3 C (73.9 F)
1915
n/a
1916
37.2 C (99.0 F)
1917
36.1 C (97.0 F)
1918
38.9 C (102.0 F)
1919
36.1 C (97.0 F)
1920
33.9 C (93.0 F)
1921
36.1 C (97.0 F)
1922
35.6 C (96.1 F)
1923
37.8 C (100.0 F)
1924
36.7 C (98.1 F)
1925
36.1 C (97.0 F)
1926
36.7 C (98.1 F)
1927
36.1 C (97.0 F)
1928
33.9 C (93.0 F)
1929
34.4 C (93.9 F)
1930
38.9 C (102.0 F)
1931
35.6 C (96.1 F)
1932
35.0 C (95.0 F)
1933
33.9 C (93.0 F)
1934
35.0 C (95.0 F)
1935
33.3 C (91.9 F)
1936
36.1 C (97.0 F)
1937
32.8 C (91.0 F)
1938
33.3 C (91.9 F)
1939
35.0 C (95.0 F)
1940
33.9 C (93.0 F)
1941
36.1 C (97.0 F)
1942
32.2 C (90.0 F)
1943
12.8 C (55.0 F)
Coldest night (TNn)
The coldest night of the year at Colebrook, 1910 to 1943. The record is -25.6 C (-14.1 F) in 1934, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Colebrook by year
Year
Coldest night (TNn)
1910
-17.8 C (0.0 F)
1911
-7.2 C (19.0 F)
1912
-7.8 C (18.0 F)
1913
-11.1 C (12.0 F)
1914
-12.2 C (10.0 F)
1915
n/a
1916
-16.7 C (1.9 F)
1917
-22.2 C (-8.0 F)
1918
-22.8 C (-9.0 F)
1919
-20.6 C (-5.1 F)
1920
-19.4 C (-2.9 F)
1921
-16.1 C (3.0 F)
1922
-18.9 C (-2.0 F)
1923
-16.1 C (3.0 F)
1924
-17.8 C (0.0 F)
1925
-23.3 C (-9.9 F)
1926
-17.2 C (1.0 F)
1927
-18.3 C (-0.9 F)
1928
-18.9 C (-2.0 F)
1929
-17.8 C (0.0 F)
1930
-23.3 C (-9.9 F)
1931
-16.1 C (3.0 F)
1932
-17.2 C (1.0 F)
1933
-20.6 C (-5.1 F)
1934
-25.6 C (-14.1 F)
1935
-25.6 C (-14.1 F)
1936
-23.9 C (-11.0 F)
1937
-15.0 C (5.0 F)
1938
-17.2 C (1.0 F)
1939
-16.7 C (1.9 F)
1940
-18.3 C (-0.9 F)
1941
-13.9 C (7.0 F)
1942
-22.8 C (-9.0 F)
1943
-14.4 C (6.1 F)
Wettest day (Rx1day)
The wettest day of the year at Colebrook, 1910 to 1943. The record is 152.1 mm (6.0 in) in 1925, marked on the chart; the median year is 67.8 mm (2.7 in).
Wettest day (Rx1day) at Colebrook by year
Year
Wettest day (Rx1day)
1910
63.2 mm (2.5 in)
1911
52.3 mm (2.1 in)
1912
53.1 mm (2.1 in)
1913
88.1 mm (3.5 in)
1914
51.1 mm (2.0 in)
1915
64.0 mm (2.5 in)
1916
77.7 mm (3.1 in)
1917
81.5 mm (3.2 in)
1918
63.2 mm (2.5 in)
1919
41.7 mm (1.6 in)
1920
52.6 mm (2.1 in)
1921
47.2 mm (1.9 in)
1922
39.1 mm (1.5 in)
1923
68.8 mm (2.7 in)
1924
72.4 mm (2.9 in)
1925
152.1 mm (6.0 in)
1926
87.6 mm (3.4 in)
1927
58.4 mm (2.3 in)
1928
66.8 mm (2.6 in)
1929
82.3 mm (3.2 in)
1930
45.7 mm (1.8 in)
1931
89.7 mm (3.5 in)
1932
93.5 mm (3.7 in)
1933
143.8 mm (5.7 in)
1934
102.4 mm (4.0 in)
1935
61.5 mm (2.4 in)
1936
65.0 mm (2.6 in)
1937
85.3 mm (3.4 in)
1938
79.2 mm (3.1 in)
1939
85.9 mm (3.4 in)
1940
97.8 mm (3.9 in)
1941
47.2 mm (1.9 in)
1942
99.6 mm (3.9 in)
1943
26.7 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Colebrook, 1910 to 1943. The record is 217.0 mm (8.5 in) in 1933, marked on the chart; the median year is 102.0 mm (4.0 in).
Wettest five days (Rx5day) at Colebrook by year
Year
Wettest five days (Rx5day)
1910
83.3 mm (3.3 in)
1911
109.8 mm (4.3 in)
1912
82.7 mm (3.3 in)
1913
104.6 mm (4.1 in)
1914
83.8 mm (3.3 in)
1915
95.6 mm (3.8 in)
1916
155.2 mm (6.1 in)
1917
124.2 mm (4.9 in)
1918
78.5 mm (3.1 in)
1919
113.6 mm (4.5 in)
1920
81.1 mm (3.2 in)
1921
85.3 mm (3.4 in)
1922
73.1 mm (2.9 in)
1923
78.0 mm (3.1 in)
1924
123.7 mm (4.9 in)
1925
194.8 mm (7.7 in)
1926
141.0 mm (5.6 in)
1927
113.5 mm (4.5 in)
1928
68.4 mm (2.7 in)
1929
144.0 mm (5.7 in)
1930
60.4 mm (2.4 in)
1931
107.3 mm (4.2 in)
1932
99.4 mm (3.9 in)
1933
217.0 mm (8.5 in)
1934
108.8 mm (4.3 in)
1935
62.2 mm (2.4 in)
1936
73.7 mm (2.9 in)
1937
155.4 mm (6.1 in)
1938
96.7 mm (3.8 in)
1939
172.7 mm (6.8 in)
1940
126.5 mm (5.0 in)
1941
69.3 mm (2.7 in)
1942
115.6 mm (4.6 in)
1943
84.6 mm (3.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Colebrook, 1910 to 1943. The record is 43 days in 1924, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Colebrook by year
Year
Longest dry spell (CDD)
1910
12 days
1911
13 days
1912
13 days
1913
22 days
1914
21 days
1915
12 days
1916
18 days
1917
21 days
1918
16 days
1919
14 days
1920
26 days
1921
11 days
1922
24 days
1923
15 days
1924
43 days
1925
16 days
1926
15 days
1927
16 days
1928
13 days
1929
11 days
1930
21 days
1931
18 days
1932
22 days
1933
12 days
1934
17 days
1935
13 days
1936
15 days
1937
13 days
1938
13 days
1939
26 days
1940
17 days
1941
21 days
1942
21 days
1943
7 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
25 years with a frost
Across 25 years with a frost, the median last spring frost at Colebrook falls on 4 May and the median first autumn frost on 10 October, which leaves a median of 161 days between them.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
Frost dates and growing season at Colebrook
Measure
Median, all years
Earliest period
Recent period (1917 to 1942)
Recent against earliest
Fitted trend
Last spring frost
4 May
n/a
4 May
n/a
-0.1 days per decade
First autumn frost
10 October
n/a
10 October
n/a
+0.4 days per decade
Growing days
161 days
n/a
161 days
n/a
+0.5 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
32 years, 1911 to 1942
A day with at least 70.2 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 160.8 mm (6.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Colebrook: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
70.2 mm (2.8 in)
5 years
93.6 mm (3.7 in)
10 years
109.5 mm (4.3 in)
25 years
129.9 mm (5.1 in)
50 years
145.3 mm (5.7 in)
Longer than the 32 years of record
100 years
160.8 mm (6.3 in)
Longer than the 32 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, 32 years of values from 1911 to 1942.
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: 152.1 mm (6.0 in) in 1925; 143.8 mm (5.7 in) in 1933; 102.4 mm (4.0 in) in 1934.
Download the Data
Data for Colebrook standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Colebrook 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.