Record envelope, standing records and threshold days for Fortine 1 N (USC00243139), Montana, United States, with 104 years of record.
Key Facts for Fortine 1 N
Fortine 1 N (USC00243139) is a weather station in Montana, United States at 48.78 latitude and -114.90 longitude, 914 m (3,000 ft) above sea level.
The station reports from 1906 to 2009, 104 years of record.
1,464 records set at Fortine 1 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Fortine 1 N set a daily record low minimum temperature of -20.0 C (-4.0 F) on 12 March 2009.
About the Station
Location: Montana, United States, 48.78 latitude, -114.90 longitude.
Elevation: 914 m (3,000 ft).
Period of record: 1906 to 2009, 104 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 Fortine 1 N. 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 Fortine 1 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
14.4 C (57.9 F)
-45.0 C (-49.0 F)
n/a
n/a
Feb
17.8 C (64.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Mar
23.3 C (73.9 F)
-35.0 C (-31.0 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-19.4 C (-2.9 F)
n/a
n/a
May
35.6 C (96.1 F)
-13.3 C (8.1 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
-4.4 C (24.1 F)
n/a
n/a
Aug
40.0 C (104.0 F)
-6.7 C (19.9 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-15.0 C (5.0 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Nov
19.4 C (66.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Dec
14.4 C (57.9 F)
-45.0 C (-49.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Fortine 1 N still stand. 1924 holds the most, with 58.
Standing records at Fortine 1 N by the year they were set
Year set
Standing records
1906
14
1907
13
1908
10
1909
18
1910
21
1911
13
1912
11
1913
17
1914
11
1915
8
1916
12
1917
9
1918
28
1919
46
1920
12
1921
9
1922
21
1923
12
1924
58
1925
21
1926
45
1927
12
1928
10
1929
22
1930
16
1931
11
1932
15
1933
23
1934
22
1935
23
1936
33
1937
13
1938
9
1939
23
1940
8
1941
7
1942
10
1943
18
1944
15
1945
12
1946
11
1947
5
1948
6
1949
14
1950
30
1951
17
1952
6
1953
11
1954
18
1955
19
1956
6
1957
12
1958
10
1959
8
1960
14
1961
13
1962
15
1963
16
1964
10
1965
9
1966
14
1967
14
1968
20
1969
10
1970
8
1971
13
1972
23
1973
13
1974
11
1975
13
1976
10
1977
12
1978
7
1979
8
1980
14
1981
17
1982
2
1983
12
1984
11
1985
25
1986
17
1987
7
1988
4
1989
7
1990
7
1991
8
1992
17
1993
11
1994
12
1995
9
1996
12
1997
2
1998
8
1999
19
2000
9
2001
9
2002
19
2003
7
2004
7
2005
18
2006
10
2007
13
2008
11
2009
3
All-Time Record Progression
7 new records
7 all-time records were set at Fortine 1 N between 15 January 1950 and 15 June 2006. Each dot is a new record.
When Fortine 1 N set new all-time records
Date
Kind
Detail
1950-01-15
Record low maximum temperature
Record low maximum temperature -26.1 C (-15.0 F)
1954-01-14
Record daily snowfall
Record daily snowfall 30.5 cm (12.0 in)
1954-01-22
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
1961-08-04
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
1968-12-29
Record low maximum temperature
Record low maximum temperature -28.3 C (-18.9 F)
1968-12-30
Record low maximum temperature
Record low maximum temperature -28.9 C (-20.0 F)
2006-06-15
Record daily precipitation
Record daily precipitation 62.2 mm (2.4 in)
Wettest Day of Each Month
Jun: 62.2 mm (2.4 in)
The wettest day on record for each calendar month at Fortine 1 N. The most was 62.2 mm (2.4 in) on 15 June 2006.
Record daily precipitation for each month at Fortine 1 N
Month
Record daily precipitation (mm)
Date
Jan
35.6 mm (1.4 in)
22 January 1954
Feb
25.7 mm (1.0 in)
22 February 1936
Mar
34.0 mm (1.3 in)
27 March 1954
Apr
27.4 mm (1.1 in)
25 April 1983
May
44.2 mm (1.7 in)
21 May 2002
Jun
62.2 mm (2.4 in)
15 June 2006
Jul
55.4 mm (2.2 in)
28 July 1948
Aug
52.8 mm (2.1 in)
9 August 1916
Sep
55.4 mm (2.2 in)
23 September 1930
Oct
39.4 mm (1.6 in)
25 October 1934
Nov
38.1 mm (1.5 in)
18 November 1946
Dec
29.5 mm (1.2 in)
22 December 1964
Period of Record Coverage
1906 to 2009
Complete yearUnder 90 percent of days
104 years of record at Fortine 1 N, 1906 to 2009. 13 years have data for under 90 percent of days and are left out of rankings: 1906, 1916, 1917, 1920, 1921, 1988, 1989, 1990 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 82 complete years at Fortine 1 N, 1907 to 2007. Blue stripes are years cooler than the station's own mean of 5.8 C (42.4 F); red stripes are warmer. The coolest year was 1929, at 4.1 C (39.4 F), and the warmest was 1998, at 7.7 C (45.9 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Fortine 1 N as warming stripes, 1907 to 2007
Year
Annual mean temperature
Difference from the station mean
1907
4.2 C
-1.55 C
1908
5.0 C
-0.73 C
1911
4.2 C
-1.52 C
1913
4.2 C
-1.58 C
1914
5.7 C
-0.11 C
1915
5.9 C
+0.11 C
1918
6.2 C
+0.44 C
1919
5.6 C
-0.18 C
1922
4.4 C
-1.36 C
1923
5.6 C
-0.12 C
1924
5.0 C
-0.76 C
1925
6.7 C
+0.95 C
1927
4.6 C
-1.15 C
1928
5.4 C
-0.35 C
1929
4.1 C
-1.64 C
1930
4.9 C
-0.85 C
1931
6.0 C
+0.22 C
1932
5.0 C
-0.75 C
1933
5.6 C
-0.13 C
1934
7.0 C
+1.22 C
1935
4.5 C
-1.25 C
1936
4.9 C
-0.85 C
1937
4.2 C
-1.56 C
1938
5.9 C
+0.18 C
1939
6.7 C
+0.94 C
1940
6.7 C
+0.91 C
1941
6.8 C
+1.07 C
1942
5.3 C
-0.48 C
1943
4.2 C
-1.52 C
1944
5.6 C
-0.14 C
1945
5.7 C
-0.03 C
1946
5.7 C
-0.07 C
1947
5.9 C
+0.15 C
1948
4.8 C
-1.01 C
1949
4.6 C
-1.21 C
1950
4.6 C
-1.19 C
1951
4.2 C
-1.56 C
1952
5.8 C
+0.01 C
1953
6.7 C
+0.92 C
1954
5.3 C
-0.49 C
1955
4.4 C
-1.34 C
1956
5.5 C
-0.26 C
1957
5.2 C
-0.58 C
1958
7.0 C
+1.28 C
1959
5.2 C
-0.56 C
1960
5.3 C
-0.46 C
1961
6.5 C
+0.69 C
1962
6.1 C
+0.32 C
1963
6.2 C
+0.43 C
1964
5.0 C
-0.72 C
1965
5.7 C
-0.02 C
1966
6.5 C
+0.73 C
1967
6.9 C
+1.15 C
1968
6.0 C
+0.22 C
1969
5.6 C
-0.18 C
1970
5.8 C
+0.07 C
1971
5.9 C
+0.16 C
1972
5.3 C
-0.42 C
1973
6.6 C
+0.84 C
1974
6.9 C
+1.14 C
1975
5.4 C
-0.40 C
1976
6.6 C
+0.80 C
1977
5.7 C
-0.08 C
1978
5.4 C
-0.41 C
1979
5.9 C
+0.09 C
1980
6.3 C
+0.57 C
1981
6.8 C
+1.01 C
1982
5.7 C
-0.04 C
1983
6.5 C
+0.72 C
1984
6.2 C
+0.39 C
1985
4.7 C
-1.11 C
1986
6.6 C
+0.82 C
1987
7.0 C
+1.25 C
1992
7.5 C
+1.69 C
1994
7.4 C
+1.64 C
1998
7.7 C
+1.95 C
1999
7.2 C
+1.46 C
2000
6.1 C
+0.30 C
2001
6.8 C
+0.99 C
2004
6.9 C
+1.12 C
2005
5.9 C
+0.10 C
2007
7.3 C
+1.56 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1907 to 2007. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Fortine 1 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.3 F (0.2 to 0.5) per decade
1907 to 2007
82
Rise
Mean daily maximum
0.03 C (-0.04 to 0.11) per decade
0.1 F (-0.1 to 0.2) per decade
1907 to 2007
82
Not clearly different from zero
Mean daily minimum
0.4 C (0.3 to 0.4) per decade
0.6 F (0.5 to 0.8) per decade
1907 to 2007
82
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
1906 to 2009
Yearly extremes at Fortine 1 N: 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)
1961
36.1 C (97.0 F)
104
Coldest night (TNn)
-45.0 C (-49.0 F)
1909
-32.2 C (-26.0 F)
104
Wettest day (Rx1day)
62.2 mm (2.4 in)
2006
27.7 mm (1.1 in)
104
Wettest five days (Rx5day)
101.3 mm (4.0 in)
2006
45.3 mm (1.8 in)
104
Longest dry spell (CDD)
54 days
1969
25 days
104
Hottest day (TXx)
The hottest day of the year at Fortine 1 N, 1906 to 2009. The record is 40.0 C (104.0 F) in 1961, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Fortine 1 N by year
Year
Hottest day (TXx)
1906
37.8 C (100.0 F)
1907
30.6 C (87.1 F)
1908
33.9 C (93.0 F)
1909
32.8 C (91.0 F)
1910
35.6 C (96.1 F)
1911
33.9 C (93.0 F)
1912
36.1 C (97.0 F)
1913
33.3 C (91.9 F)
1914
36.7 C (98.1 F)
1915
35.0 C (95.0 F)
1916
32.8 C (91.0 F)
1917
37.8 C (100.0 F)
1918
36.7 C (98.1 F)
1919
38.3 C (100.9 F)
1920
36.1 C (97.0 F)
1921
36.1 C (97.0 F)
1922
37.8 C (100.0 F)
1923
36.1 C (97.0 F)
1924
38.9 C (102.0 F)
1925
36.1 C (97.0 F)
1926
36.7 C (98.1 F)
1927
36.1 C (97.0 F)
1928
37.8 C (100.0 F)
1929
35.0 C (95.0 F)
1930
35.6 C (96.1 F)
1931
35.0 C (95.0 F)
1932
36.1 C (97.0 F)
1933
36.1 C (97.0 F)
1934
38.3 C (100.9 F)
1935
35.0 C (95.0 F)
1936
36.7 C (98.1 F)
1937
35.6 C (96.1 F)
1938
36.1 C (97.0 F)
1939
36.7 C (98.1 F)
1940
36.7 C (98.1 F)
1941
37.8 C (100.0 F)
1942
34.4 C (93.9 F)
1943
33.3 C (91.9 F)
1944
34.4 C (93.9 F)
1945
34.4 C (93.9 F)
1946
33.9 C (93.0 F)
1947
35.6 C (96.1 F)
1948
31.7 C (89.1 F)
1949
33.9 C (93.0 F)
1950
35.0 C (95.0 F)
1951
33.9 C (93.0 F)
1952
35.0 C (95.0 F)
1953
36.7 C (98.1 F)
1954
32.8 C (91.0 F)
1955
34.4 C (93.9 F)
1956
33.9 C (93.0 F)
1957
32.2 C (90.0 F)
1958
35.0 C (95.0 F)
1959
37.2 C (99.0 F)
1960
37.8 C (100.0 F)
1961
40.0 C (104.0 F)
1962
35.0 C (95.0 F)
1963
36.1 C (97.0 F)
1964
35.0 C (95.0 F)
1965
35.0 C (95.0 F)
1966
35.0 C (95.0 F)
1967
37.8 C (100.0 F)
1968
35.6 C (96.1 F)
1969
38.3 C (100.9 F)
1970
36.1 C (97.0 F)
1971
37.8 C (100.0 F)
1972
36.1 C (97.0 F)
1973
36.7 C (98.1 F)
1974
35.0 C (95.0 F)
1975
37.8 C (100.0 F)
1976
33.9 C (93.0 F)
1977
36.1 C (97.0 F)
1978
36.1 C (97.0 F)
1979
37.8 C (100.0 F)
1980
33.3 C (91.9 F)
1981
37.8 C (100.0 F)
1982
34.4 C (93.9 F)
1983
36.1 C (97.0 F)
1984
37.2 C (99.0 F)
1985
37.8 C (100.0 F)
1986
35.6 C (96.1 F)
1987
35.6 C (96.1 F)
1988
35.0 C (95.0 F)
1989
36.7 C (98.1 F)
1990
36.1 C (97.0 F)
1991
35.0 C (95.0 F)
1992
36.1 C (97.0 F)
1993
31.7 C (89.1 F)
1994
37.2 C (99.0 F)
1995
32.2 C (90.0 F)
1996
34.4 C (93.9 F)
1997
33.9 C (93.0 F)
1998
35.6 C (96.1 F)
1999
35.6 C (96.1 F)
2000
35.6 C (96.1 F)
2001
36.1 C (97.0 F)
2002
38.9 C (102.0 F)
2003
36.7 C (98.1 F)
2004
36.1 C (97.0 F)
2005
34.4 C (93.9 F)
2006
36.1 C (97.0 F)
2007
37.2 C (99.0 F)
2008
40.0 C (104.0 F)
2009
12.8 C (55.0 F)
Coldest night (TNn)
The coldest night of the year at Fortine 1 N, 1906 to 2009. The record is -45.0 C (-49.0 F) in 1909, marked on the chart; the median year is -32.2 C (-26.0 F).
Coldest night (TNn) at Fortine 1 N by year
Year
Coldest night (TNn)
1906
-22.8 C (-9.0 F)
1907
-37.2 C (-35.0 F)
1908
-30.6 C (-23.1 F)
1909
-45.0 C (-49.0 F)
1910
-36.1 C (-33.0 F)
1911
-36.1 C (-33.0 F)
1912
-23.3 C (-9.9 F)
1913
-35.6 C (-32.1 F)
1914
-36.7 C (-34.1 F)
1915
-32.8 C (-27.0 F)
1916
-37.8 C (-36.0 F)
1917
-23.9 C (-11.0 F)
1918
-38.3 C (-36.9 F)
1919
-38.3 C (-36.9 F)
1920
-26.1 C (-15.0 F)
1921
-32.2 C (-26.0 F)
1922
-43.3 C (-45.9 F)
1923
-42.8 C (-45.0 F)
1924
-45.0 C (-49.0 F)
1925
-32.8 C (-27.0 F)
1926
-24.4 C (-11.9 F)
1927
-41.1 C (-42.0 F)
1928
-30.6 C (-23.1 F)
1929
-38.9 C (-38.0 F)
1930
-33.9 C (-29.0 F)
1931
-29.4 C (-20.9 F)
1932
-30.6 C (-23.1 F)
1933
-37.8 C (-36.0 F)
1934
-30.6 C (-23.1 F)
1935
-42.8 C (-45.0 F)
1936
-41.1 C (-42.0 F)
1937
-43.9 C (-47.0 F)
1938
-25.0 C (-13.0 F)
1939
-32.8 C (-27.0 F)
1940
-31.7 C (-25.1 F)
1941
-21.1 C (-6.0 F)
1942
-34.4 C (-29.9 F)
1943
-38.9 C (-38.0 F)
1944
-28.3 C (-18.9 F)
1945
-25.0 C (-13.0 F)
1946
-33.3 C (-27.9 F)
1947
-32.2 C (-26.0 F)
1948
-33.3 C (-27.9 F)
1949
-36.7 C (-34.1 F)
1950
-44.4 C (-47.9 F)
1951
-34.4 C (-29.9 F)
1952
-32.2 C (-26.0 F)
1953
-18.3 C (-0.9 F)
1954
-42.2 C (-44.0 F)
1955
-32.8 C (-27.0 F)
1956
-36.7 C (-34.1 F)
1957
-42.2 C (-44.0 F)
1958
-32.8 C (-27.0 F)
1959
-30.0 C (-22.0 F)
1960
-35.0 C (-31.0 F)
1961
-28.9 C (-20.0 F)
1962
-37.2 C (-35.0 F)
1963
-35.6 C (-32.1 F)
1964
-30.6 C (-23.1 F)
1965
-23.3 C (-9.9 F)
1966
-30.0 C (-22.0 F)
1967
-22.2 C (-8.0 F)
1968
-45.0 C (-49.0 F)
1969
-35.6 C (-32.1 F)
1970
-29.4 C (-20.9 F)
1971
-28.9 C (-20.0 F)
1972
-35.0 C (-31.0 F)
1973
-32.8 C (-27.0 F)
1974
-31.7 C (-25.1 F)
1975
-32.8 C (-27.0 F)
1976
-24.4 C (-11.9 F)
1977
-28.9 C (-20.0 F)
1978
-38.9 C (-38.0 F)
1979
-38.9 C (-38.0 F)
1980
-31.7 C (-25.1 F)
1981
-25.0 C (-13.0 F)
1982
-31.7 C (-25.1 F)
1983
-35.6 C (-32.1 F)
1984
-30.0 C (-22.0 F)
1985
-33.3 C (-27.9 F)
1986
-25.6 C (-14.1 F)
1987
-22.2 C (-8.0 F)
1988
-30.0 C (-22.0 F)
1989
-14.4 C (6.1 F)
1990
-22.2 C (-8.0 F)
1991
-22.2 C (-8.0 F)
1992
-25.6 C (-14.1 F)
1993
-32.8 C (-27.0 F)
1994
-28.9 C (-20.0 F)
1995
-23.3 C (-9.9 F)
1996
-36.7 C (-34.1 F)
1997
-32.2 C (-26.0 F)
1998
-34.4 C (-29.9 F)
1999
-17.8 C (0.0 F)
2000
-25.6 C (-14.1 F)
2001
-23.3 C (-9.9 F)
2002
-23.3 C (-9.9 F)
2003
-20.6 C (-5.1 F)
2004
-37.2 C (-35.0 F)
2005
-33.9 C (-29.0 F)
2006
-20.0 C (-4.0 F)
2007
-25.0 C (-13.0 F)
2008
-31.1 C (-24.0 F)
2009
-22.2 C (-8.0 F)
Wettest day (Rx1day)
The wettest day of the year at Fortine 1 N, 1906 to 2009. The record is 62.2 mm (2.4 in) in 2006, marked on the chart; the median year is 27.7 mm (1.1 in).
Wettest day (Rx1day) at Fortine 1 N by year
Year
Wettest day (Rx1day)
1906
22.9 mm (0.9 in)
1907
28.4 mm (1.1 in)
1908
32.5 mm (1.3 in)
1909
29.2 mm (1.1 in)
1910
16.3 mm (0.6 in)
1911
30.0 mm (1.2 in)
1912
17.8 mm (0.7 in)
1913
26.7 mm (1.1 in)
1914
43.2 mm (1.7 in)
1915
26.9 mm (1.1 in)
1916
52.8 mm (2.1 in)
1917
26.7 mm (1.1 in)
1918
35.6 mm (1.4 in)
1919
14.2 mm (0.6 in)
1920
36.8 mm (1.4 in)
1921
14.7 mm (0.6 in)
1922
14.0 mm (0.6 in)
1923
29.0 mm (1.1 in)
1924
23.4 mm (0.9 in)
1925
35.1 mm (1.4 in)
1926
38.4 mm (1.5 in)
1927
23.4 mm (0.9 in)
1928
22.1 mm (0.9 in)
1929
27.2 mm (1.1 in)
1930
55.4 mm (2.2 in)
1931
17.8 mm (0.7 in)
1932
33.3 mm (1.3 in)
1933
26.7 mm (1.1 in)
1934
39.4 mm (1.6 in)
1935
31.5 mm (1.2 in)
1936
25.7 mm (1.0 in)
1937
44.7 mm (1.8 in)
1938
33.8 mm (1.3 in)
1939
18.0 mm (0.7 in)
1940
26.7 mm (1.1 in)
1941
13.0 mm (0.5 in)
1942
30.5 mm (1.2 in)
1943
28.4 mm (1.1 in)
1944
15.2 mm (0.6 in)
1945
21.6 mm (0.9 in)
1946
38.1 mm (1.5 in)
1947
39.6 mm (1.6 in)
1948
55.4 mm (2.2 in)
1949
30.5 mm (1.2 in)
1950
27.9 mm (1.1 in)
1951
41.1 mm (1.6 in)
1952
35.1 mm (1.4 in)
1953
29.7 mm (1.2 in)
1954
43.7 mm (1.7 in)
1955
30.5 mm (1.2 in)
1956
29.2 mm (1.1 in)
1957
15.2 mm (0.6 in)
1958
35.6 mm (1.4 in)
1959
29.7 mm (1.2 in)
1960
16.8 mm (0.7 in)
1961
27.9 mm (1.1 in)
1962
15.2 mm (0.6 in)
1963
36.6 mm (1.4 in)
1964
36.8 mm (1.4 in)
1965
20.1 mm (0.8 in)
1966
32.5 mm (1.3 in)
1967
16.8 mm (0.7 in)
1968
34.3 mm (1.4 in)
1969
30.5 mm (1.2 in)
1970
18.0 mm (0.7 in)
1971
25.9 mm (1.0 in)
1972
20.3 mm (0.8 in)
1973
26.2 mm (1.0 in)
1974
23.4 mm (0.9 in)
1975
25.9 mm (1.0 in)
1976
15.2 mm (0.6 in)
1977
21.6 mm (0.9 in)
1978
15.0 mm (0.6 in)
1979
21.3 mm (0.8 in)
1980
26.4 mm (1.0 in)
1981
32.3 mm (1.3 in)
1982
19.8 mm (0.8 in)
1983
27.4 mm (1.1 in)
1984
21.8 mm (0.9 in)
1985
47.0 mm (1.9 in)
1986
26.4 mm (1.0 in)
1987
41.9 mm (1.6 in)
1988
15.2 mm (0.6 in)
1989
31.8 mm (1.3 in)
1990
20.3 mm (0.8 in)
1991
15.5 mm (0.6 in)
1992
17.3 mm (0.7 in)
1993
38.4 mm (1.5 in)
1994
24.1 mm (0.9 in)
1995
41.4 mm (1.6 in)
1996
24.4 mm (1.0 in)
1997
18.5 mm (0.7 in)
1998
38.9 mm (1.5 in)
1999
39.9 mm (1.6 in)
2000
12.4 mm (0.5 in)
2001
48.5 mm (1.9 in)
2002
44.2 mm (1.7 in)
2003
34.3 mm (1.4 in)
2004
27.9 mm (1.1 in)
2005
33.3 mm (1.3 in)
2006
62.2 mm (2.4 in)
2007
21.8 mm (0.9 in)
2008
25.4 mm (1.0 in)
2009
3.8 mm (0.15 in)
Wettest five days (Rx5day)
The wettest five days of the year at Fortine 1 N, 1906 to 2009. The record is 101.3 mm (4.0 in) in 2006, marked on the chart; the median year is 45.3 mm (1.8 in).
Wettest five days (Rx5day) at Fortine 1 N by year
Year
Wettest five days (Rx5day)
1906
41.7 mm (1.6 in)
1907
34.2 mm (1.3 in)
1908
60.7 mm (2.4 in)
1909
35.3 mm (1.4 in)
1910
29.3 mm (1.2 in)
1911
80.6 mm (3.2 in)
1912
40.2 mm (1.6 in)
1913
58.9 mm (2.3 in)
1914
49.0 mm (1.9 in)
1915
31.0 mm (1.2 in)
1916
62.0 mm (2.4 in)
1917
73.8 mm (2.9 in)
1918
46.0 mm (1.8 in)
1919
31.5 mm (1.2 in)
1920
42.6 mm (1.7 in)
1921
24.6 mm (1.0 in)
1922
21.4 mm (0.8 in)
1923
77.6 mm (3.1 in)
1924
55.7 mm (2.2 in)
1925
41.0 mm (1.6 in)
1926
62.5 mm (2.5 in)
1927
57.1 mm (2.2 in)
1928
66.6 mm (2.6 in)
1929
65.0 mm (2.6 in)
1930
58.2 mm (2.3 in)
1931
33.0 mm (1.3 in)
1932
56.6 mm (2.2 in)
1933
63.1 mm (2.5 in)
1934
59.8 mm (2.4 in)
1935
40.7 mm (1.6 in)
1936
36.8 mm (1.4 in)
1937
45.2 mm (1.8 in)
1938
51.5 mm (2.0 in)
1939
32.9 mm (1.3 in)
1940
29.2 mm (1.1 in)
1941
37.9 mm (1.5 in)
1942
54.1 mm (2.1 in)
1943
36.9 mm (1.5 in)
1944
25.3 mm (1.0 in)
1945
49.3 mm (1.9 in)
1946
64.9 mm (2.6 in)
1947
61.9 mm (2.4 in)
1948
67.4 mm (2.7 in)
1949
37.1 mm (1.5 in)
1950
40.6 mm (1.6 in)
1951
94.5 mm (3.7 in)
1952
68.4 mm (2.7 in)
1953
45.6 mm (1.8 in)
1954
48.8 mm (1.9 in)
1955
47.6 mm (1.9 in)
1956
43.4 mm (1.7 in)
1957
35.5 mm (1.4 in)
1958
38.6 mm (1.5 in)
1959
55.6 mm (2.2 in)
1960
31.5 mm (1.2 in)
1961
58.4 mm (2.3 in)
1962
19.3 mm (0.8 in)
1963
41.2 mm (1.6 in)
1964
53.5 mm (2.1 in)
1965
34.1 mm (1.3 in)
1966
74.2 mm (2.9 in)
1967
22.9 mm (0.9 in)
1968
57.1 mm (2.2 in)
1969
78.1 mm (3.1 in)
1970
36.3 mm (1.4 in)
1971
45.3 mm (1.8 in)
1972
34.7 mm (1.4 in)
1973
30.0 mm (1.2 in)
1974
58.2 mm (2.3 in)
1975
42.9 mm (1.7 in)
1976
38.6 mm (1.5 in)
1977
31.5 mm (1.2 in)
1978
32.8 mm (1.3 in)
1979
33.4 mm (1.3 in)
1980
53.5 mm (2.1 in)
1981
62.3 mm (2.5 in)
1982
37.6 mm (1.5 in)
1983
53.6 mm (2.1 in)
1984
39.4 mm (1.6 in)
1985
59.2 mm (2.3 in)
1986
39.4 mm (1.6 in)
1987
57.1 mm (2.2 in)
1988
31.7 mm (1.2 in)
1989
49.8 mm (2.0 in)
1990
49.4 mm (1.9 in)
1991
24.9 mm (1.0 in)
1992
38.7 mm (1.5 in)
1993
56.7 mm (2.2 in)
1994
27.4 mm (1.1 in)
1995
75.4 mm (3.0 in)
1996
52.6 mm (2.1 in)
1997
40.9 mm (1.6 in)
1998
68.0 mm (2.7 in)
1999
43.2 mm (1.7 in)
2000
26.1 mm (1.0 in)
2001
62.5 mm (2.5 in)
2002
70.1 mm (2.8 in)
2003
40.2 mm (1.6 in)
2004
63.5 mm (2.5 in)
2005
60.2 mm (2.4 in)
2006
101.3 mm (4.0 in)
2007
31.0 mm (1.2 in)
2008
33.0 mm (1.3 in)
2009
5.1 mm (0.20 in)
Longest dry spell (CDD)
The longest dry spell of the year at Fortine 1 N, 1906 to 2009. The record is 54 days in 1969, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Fortine 1 N by year
Year
Longest dry spell (CDD)
1906
21 days
1907
23 days
1908
27 days
1909
23 days
1910
23 days
1911
22 days
1912
20 days
1913
27 days
1914
21 days
1915
18 days
1916
15 days
1917
30 days
1918
20 days
1919
26 days
1920
24 days
1921
21 days
1922
25 days
1923
31 days
1924
26 days
1925
30 days
1926
26 days
1927
13 days
1928
25 days
1929
22 days
1930
27 days
1931
26 days
1932
23 days
1933
23 days
1934
46 days
1935
24 days
1936
43 days
1937
17 days
1938
32 days
1939
29 days
1940
27 days
1941
28 days
1942
20 days
1943
30 days
1944
26 days
1945
27 days
1946
23 days
1947
20 days
1948
29 days
1949
18 days
1950
22 days
1951
21 days
1952
46 days
1953
35 days
1954
22 days
1955
25 days
1956
23 days
1957
19 days
1958
19 days
1959
35 days
1960
21 days
1961
20 days
1962
19 days
1963
17 days
1964
19 days
1965
28 days
1966
19 days
1967
31 days
1968
30 days
1969
54 days
1970
28 days
1971
25 days
1972
17 days
1973
31 days
1974
32 days
1975
19 days
1976
27 days
1977
22 days
1978
33 days
1979
41 days
1980
19 days
1981
31 days
1982
20 days
1983
20 days
1984
33 days
1985
32 days
1986
27 days
1987
32 days
1988
25 days
1989
13 days
1990
29 days
1991
29 days
1992
23 days
1993
21 days
1994
35 days
1995
18 days
1996
31 days
1997
15 days
1998
36 days
1999
25 days
2000
39 days
2001
37 days
2002
38 days
2003
24 days
2004
24 days
2005
39 days
2006
27 days
2007
30 days
2008
46 days
2009
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
82 years with a frost
Across 82 years with a frost, the median last spring frost at Fortine 1 N falls on 15 June and the median first autumn frost on 15 August, which leaves a median of 60 days between them.
In 1967 to 2007 the median growing season was 94 days. That is 64 days more than in 1907 to 1944.
Fitted over all years, the growing season changes by +9.7 days per decade at this station.
Frost dates and growing season at Fortine 1 N
Measure
Median, all years
Earliest period (1907 to 1944)
Recent period (1967 to 2007)
Recent against earliest
Fitted trend
Last spring frost
15 June
21 June
2 June
19 days earlier
-3.1 days per decade
First autumn frost
15 August
17 July
4 September
49 days later
+6.6 days per decade
Growing days
60 days
30 days
94 days
64 days more
+9.7 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
91 years, 1907 to 2008
A day with at least 27.6 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 58.1 mm (2.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Fortine 1 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
27.6 mm (1.1 in)
5 years
36.9 mm (1.5 in)
10 years
42.6 mm (1.7 in)
25 years
49.2 mm (1.9 in)
50 years
53.8 mm (2.1 in)
100 years
58.1 mm (2.3 in)
Longer than the 91 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, 91 years of values from 1907 to 2008.
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: 62.2 mm (2.4 in) in 2006; 55.4 mm (2.2 in) in 1930; 55.4 mm (2.2 in) in 1948.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Fortine 1 N, at 1961 and 2000. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1961 ran 0.3 C (0.5 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 2000 ran 0.3 C (0.6 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Fortine 1 N, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1961
+0.3
+0.5
likely
5
2000
-0.3
-0.6
possible
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 Fortine 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fortine 1 N 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.