Record envelope, standing records and threshold days for Cornish (USC00171670), Maine, United States, with 33 years of record.
Key Facts for Cornish
Cornish (USC00171670) is a weather station in Maine, United States at 43.80 latitude and -70.80 longitude, 239 m (784 ft) above sea level.
The station reports from 1892 to 1924, 33 years of record.
1,464 records set at Cornish still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Cornish set a daily record precipitation of 34.0 mm (1.3 in) on 17 July 1924.
About the Station
Location: Maine, United States, 43.80 latitude, -70.80 longitude.
Elevation: 239 m (784 ft).
Period of record: 1892 to 1924, 33 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 Cornish. 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 Cornish, 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)
-35.0 C (-31.0 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-17.8 C (0.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
39.4 C (102.9 F)
5.0 C (41.0 F)
n/a
n/a
Aug
37.8 C (100.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Cornish still stand. 1903 holds the most, with 84.
Standing records at Cornish by the year they were set
Year set
Standing records
1894
18
1901
65
1902
52
1903
84
1904
56
1905
52
1906
58
1907
63
1908
69
1909
55
1910
59
1911
84
1912
57
1913
77
1914
77
1915
59
1916
67
1917
64
1918
65
1919
47
1920
47
1921
59
1922
42
1923
67
1924
21
Wettest Day of Each Month
Aug: 134.4 mm (5.3 in)
The wettest day on record for each calendar month at Cornish. The most was 134.4 mm (5.3 in) on 7 August 1901.
Record daily precipitation for each month at Cornish
Month
Record daily precipitation (mm)
Date
Jan
67.1 mm (2.6 in)
22 January 1902
Feb
63.2 mm (2.5 in)
13 February 1900
Mar
91.2 mm (3.6 in)
1 March 1896
Apr
102.1 mm (4.0 in)
7 April 1901
May
102.6 mm (4.0 in)
17 May 1916
Jun
121.9 mm (4.8 in)
18 June 1922
Jul
113.5 mm (4.5 in)
31 July 1905
Aug
134.4 mm (5.3 in)
7 August 1901
Sep
78.7 mm (3.1 in)
30 September 1920
Oct
83.8 mm (3.3 in)
24 October 1893
Nov
72.4 mm (2.9 in)
24 November 1923
Dec
70.9 mm (2.8 in)
14 December 1920
Period of Record Coverage
1894 to 1924
Complete yearUnder 90 percent of days
25 years of record at Cornish, 1894 to 1924. 3 years have data for under 90 percent of days and are left out of rankings: 1894, 1918, 1924.
Cooler than the station meanWarmer than the station mean
One stripe for each of 22 complete years at Cornish, 1901 to 1923. Blue stripes are years cooler than the station's own mean of 7.3 C (45.1 F); red stripes are warmer. The coolest year was 1904, at 5.6 C (42.0 F), and the warmest was 1913, at 9.0 C (48.1 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Cornish as warming stripes, 1901 to 1923
Year
Annual mean temperature
Difference from the station mean
1901
7.0 C
-0.21 C
1902
7.2 C
-0.04 C
1903
7.2 C
-0.01 C
1904
5.6 C
-1.68 C
1905
6.3 C
-0.96 C
1906
7.1 C
-0.13 C
1907
5.9 C
-1.37 C
1908
7.5 C
+0.25 C
1909
7.2 C
-0.05 C
1910
7.7 C
+0.43 C
1911
7.9 C
+0.61 C
1912
7.5 C
+0.27 C
1913
9.0 C
+1.70 C
1914
7.1 C
-0.17 C
1915
8.4 C
+1.18 C
1916
7.4 C
+0.19 C
1917
6.3 C
-0.97 C
1919
7.2 C
-0.06 C
1920
7.1 C
-0.15 C
1921
8.6 C
+1.36 C
1922
7.6 C
+0.33 C
1923
6.7 C
-0.51 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
1892 to 1924
Yearly extremes at Cornish: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
1911
35.0 C (95.0 F)
25
Coldest night (TNn)
-37.8 C (-36.0 F)
1917
-29.1 C (-20.5 F)
24
Wettest day (Rx1day)
134.4 mm (5.3 in)
1901
69.9 mm (2.8 in)
33
Wettest five days (Rx5day)
203.4 mm (8.0 in)
1896
93.8 mm (3.7 in)
33
Longest dry spell (CDD)
25 days
1903
16 days
33
Hottest day (TXx)
The hottest day of the year at Cornish, 1892 to 1924. The record is 39.4 C (102.9 F) in 1911, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Cornish by year
Year
Hottest day (TXx)
1892
n/a
1893
n/a
1894
20.0 C (68.0 F)
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
36.1 C (97.0 F)
1902
32.2 C (90.0 F)
1903
35.6 C (96.1 F)
1904
33.9 C (93.0 F)
1905
32.8 C (91.0 F)
1906
35.0 C (95.0 F)
1907
34.4 C (93.9 F)
1908
36.1 C (97.0 F)
1909
34.4 C (93.9 F)
1910
37.2 C (99.0 F)
1911
39.4 C (102.9 F)
1912
38.3 C (100.9 F)
1913
37.8 C (100.0 F)
1914
33.9 C (93.0 F)
1915
33.3 C (91.9 F)
1916
35.6 C (96.1 F)
1917
36.1 C (97.0 F)
1918
34.4 C (93.9 F)
1919
37.2 C (99.0 F)
1920
33.3 C (91.9 F)
1921
35.0 C (95.0 F)
1922
33.3 C (91.9 F)
1923
35.0 C (95.0 F)
1924
32.2 C (90.0 F)
Coldest night (TNn)
The coldest night of the year at Cornish, 1892 to 1924. The record is -37.8 C (-36.0 F) in 1917, marked on the chart; the median year is -29.1 C (-20.5 F).
Coldest night (TNn) at Cornish by year
Year
Coldest night (TNn)
1892
n/a
1893
n/a
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
-25.6 C (-14.1 F)
1902
-27.2 C (-17.0 F)
1903
-25.0 C (-13.0 F)
1904
-27.2 C (-17.0 F)
1905
-25.6 C (-14.1 F)
1906
-22.8 C (-9.0 F)
1907
-29.4 C (-20.9 F)
1908
-26.7 C (-16.1 F)
1909
-28.3 C (-18.9 F)
1910
-31.7 C (-25.1 F)
1911
-28.9 C (-20.0 F)
1912
-33.9 C (-29.0 F)
1913
-28.3 C (-18.9 F)
1914
-35.0 C (-31.0 F)
1915
-30.6 C (-23.1 F)
1916
-27.8 C (-18.0 F)
1917
-37.8 C (-36.0 F)
1918
-34.4 C (-29.9 F)
1919
-30.0 C (-22.0 F)
1920
-34.4 C (-29.9 F)
1921
-26.1 C (-15.0 F)
1922
-35.6 C (-32.1 F)
1923
-33.9 C (-29.0 F)
1924
-33.9 C (-29.0 F)
Wettest day (Rx1day)
The wettest day of the year at Cornish, 1892 to 1924. The record is 134.4 mm (5.3 in) in 1901, marked on the chart; the median year is 69.9 mm (2.8 in).
Wettest day (Rx1day) at Cornish by year
Year
Wettest day (Rx1day)
1892
21.1 mm (0.8 in)
1893
83.8 mm (3.3 in)
1894
63.5 mm (2.5 in)
1895
79.8 mm (3.1 in)
1896
91.2 mm (3.6 in)
1897
100.3 mm (3.9 in)
1898
50.8 mm (2.0 in)
1899
42.7 mm (1.7 in)
1900
69.9 mm (2.8 in)
1901
134.4 mm (5.3 in)
1902
79.8 mm (3.1 in)
1903
68.1 mm (2.7 in)
1904
86.1 mm (3.4 in)
1905
113.5 mm (4.5 in)
1906
69.1 mm (2.7 in)
1907
60.5 mm (2.4 in)
1908
52.3 mm (2.1 in)
1909
64.3 mm (2.5 in)
1910
61.0 mm (2.4 in)
1911
56.4 mm (2.2 in)
1912
55.9 mm (2.2 in)
1913
74.9 mm (2.9 in)
1914
63.5 mm (2.5 in)
1915
87.9 mm (3.5 in)
1916
102.6 mm (4.0 in)
1917
85.3 mm (3.4 in)
1918
67.3 mm (2.6 in)
1919
60.5 mm (2.4 in)
1920
78.7 mm (3.1 in)
1921
30.2 mm (1.2 in)
1922
121.9 mm (4.8 in)
1923
72.4 mm (2.9 in)
1924
73.7 mm (2.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cornish, 1892 to 1924. The record is 203.4 mm (8.0 in) in 1896, marked on the chart; the median year is 93.8 mm (3.7 in).
Wettest five days (Rx5day) at Cornish by year
Year
Wettest five days (Rx5day)
1892
22.4 mm (0.9 in)
1893
36.5 mm (1.4 in)
1894
100.6 mm (4.0 in)
1895
137.8 mm (5.4 in)
1896
203.4 mm (8.0 in)
1897
100.6 mm (4.0 in)
1898
67.3 mm (2.6 in)
1899
68.9 mm (2.7 in)
1900
108.2 mm (4.3 in)
1901
197.3 mm (7.8 in)
1902
91.3 mm (3.6 in)
1903
123.7 mm (4.9 in)
1904
89.9 mm (3.5 in)
1905
186.1 mm (7.3 in)
1906
100.3 mm (3.9 in)
1907
118.6 mm (4.7 in)
1908
59.7 mm (2.4 in)
1909
87.5 mm (3.4 in)
1910
64.3 mm (2.5 in)
1911
64.3 mm (2.5 in)
1912
89.7 mm (3.5 in)
1913
81.6 mm (3.2 in)
1914
87.9 mm (3.5 in)
1915
120.7 mm (4.8 in)
1916
109.0 mm (4.3 in)
1917
120.1 mm (4.7 in)
1918
96.8 mm (3.8 in)
1919
73.0 mm (2.9 in)
1920
93.8 mm (3.7 in)
1921
43.2 mm (1.7 in)
1922
189.7 mm (7.5 in)
1923
103.3 mm (4.1 in)
1924
83.4 mm (3.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cornish, 1892 to 1924. The record is 25 days in 1903, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Cornish by year
Year
Longest dry spell (CDD)
1892
12 days
1893
9 days
1894
12 days
1895
16 days
1896
10 days
1897
16 days
1898
8 days
1899
12 days
1900
19 days
1901
18 days
1902
14 days
1903
25 days
1904
17 days
1905
20 days
1906
16 days
1907
12 days
1908
18 days
1909
11 days
1910
16 days
1911
17 days
1912
19 days
1913
18 days
1914
23 days
1915
17 days
1916
15 days
1917
20 days
1918
25 days
1919
17 days
1920
13 days
1921
18 days
1922
13 days
1923
16 days
1924
20 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
22 years with a frost
Across 22 years with a frost, the median last spring frost at Cornish falls on 14 May and the median first autumn frost on 24 September, which leaves a median of 137 days between them.
Frost dates and growing season at Cornish
Measure
Median, all years
Earliest period
Recent period (1901 to 1923)
Recent against earliest
Fitted trend
Last spring frost
14 May
n/a
14 May
n/a
n/a
First autumn frost
24 September
n/a
24 September
n/a
n/a
Growing days
137 days
n/a
137 days
n/a
n/a
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.
Download the Data
Data for Cornish standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cornish 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.