Record envelope, standing records and threshold days for Merriman (USC00255470), Nebraska, United States, with 115 years of record.
Key Facts for Merriman
Merriman (USC00255470) is a weather station in Nebraska, United States at 42.92 latitude and -101.71 longitude, 986 m (3,235 ft) above sea level.
The station reports from 1897 to 2011, 115 years of record.
1,464 records set at Merriman still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Merriman set a daily record snow depth of 15.2 cm (6.0 in) on 15 April 2011.
About the Station
Location: Nebraska, United States, 42.92 latitude, -101.71 longitude.
Elevation: 986 m (3,235 ft).
Period of record: 1897 to 2011, 115 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 Merriman. 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 Merriman, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Feb
26.7 C (80.1 F)
-40.0 C (-40.0 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-22.8 C (-9.0 F)
n/a
n/a
May
39.4 C (102.9 F)
-10.0 C (14.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
44.4 C (111.9 F)
2.8 C (37.0 F)
n/a
n/a
Aug
43.3 C (109.9 F)
0.6 C (33.1 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-15.0 C (5.0 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-25.0 C (-13.0 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Dec
21.7 C (71.1 F)
-41.1 C (-42.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Merriman still stand. 1936 holds the most, with 57.
Standing records at Merriman by the year they were set
Year set
Standing records
1907
19
1917
10
1918
21
1919
21
1920
10
1921
19
1922
11
1923
6
1924
17
1925
13
1926
16
1927
25
1928
24
1929
23
1930
21
1931
23
1932
20
1933
14
1934
21
1935
27
1936
57
1937
13
1938
4
1939
19
1940
16
1941
8
1942
11
1943
23
1944
9
1945
10
1946
11
1947
18
1948
1
1949
10
1950
24
1951
18
1952
20
1953
10
1954
19
1955
15
1956
9
1957
10
1958
8
1959
17
1960
13
1961
7
1962
22
1963
14
1964
12
1965
13
1966
17
1967
13
1968
11
1969
9
1970
8
1971
8
1972
21
1973
6
1974
10
1975
11
1976
19
1977
12
1978
10
1979
15
1980
19
1981
13
1982
11
1983
16
1984
10
1985
34
1986
15
1987
15
1988
15
1989
37
1990
18
1991
17
1992
21
1993
16
1994
14
1995
27
1996
14
1997
22
1998
23
1999
16
2000
12
2001
4
2002
26
2003
12
2004
14
2005
16
2006
12
2008
5
2009
11
2010
7
All-Time Record Progression
2 new records
2 all-time records were set at Merriman between 23 December 1983 and 3 February 1989. Each dot is a new record.
When Merriman set new all-time records
Date
Kind
Detail
1983-12-23
Record low minimum temperature
Record low minimum temperature -41.1 C (-42.0 F)
1989-02-03
Record low maximum temperature
Record low maximum temperature -31.7 C (-25.1 F)
Wettest Day of Each Month
May: 177.8 mm (7.0 in)
The wettest day on record for each calendar month at Merriman. The most was 177.8 mm (7.0 in) on 31 May 1904.
Record daily precipitation for each month at Merriman
Month
Record daily precipitation (mm)
Date
Jan
36.1 mm (1.4 in)
28 January 1944
Feb
38.1 mm (1.5 in)
13 February 1915
Mar
41.1 mm (1.6 in)
8 March 2000
Apr
95.3 mm (3.8 in)
18 April 1920
May
177.8 mm (7.0 in)
31 May 1904
Jun
77.2 mm (3.0 in)
7 June 1925
Jul
108.0 mm (4.3 in)
3 July 1919
Aug
106.7 mm (4.2 in)
12 August 1998
Sep
75.4 mm (3.0 in)
18 September 1996
Oct
61.7 mm (2.4 in)
1 October 2004
Nov
52.1 mm (2.1 in)
4 November 1922
Dec
25.4 mm (1.0 in)
5 December 1936
Period of Record Coverage
1906 to 2011
Complete yearUnder 90 percent of days
97 years of record at Merriman, 1906 to 2011. 18 years have data for under 90 percent of days and are left out of rankings: 1906, 1907, 1915, 1917, 1929, 1933, 1937, 1948 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 69 complete years at Merriman, 1918 to 2004. Blue stripes are years cooler than the station's own mean of 8.8 C (47.9 F); red stripes are warmer. The coolest year was 1924, at 6.8 C (44.2 F), and the warmest was 1999, at 10.5 C (50.9 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Merriman as warming stripes, 1918 to 2004
Year
Annual mean temperature
Difference from the station mean
1918
8.4 C
-0.40 C
1920
8.1 C
-0.72 C
1921
9.4 C
+0.54 C
1922
7.8 C
-1.06 C
1923
8.1 C
-0.72 C
1924
6.8 C
-2.06 C
1925
8.3 C
-0.53 C
1926
8.1 C
-0.74 C
1927
7.8 C
-1.01 C
1928
10.0 C
+1.20 C
1930
9.6 C
+0.77 C
1931
10.5 C
+1.65 C
1932
8.6 C
-0.18 C
1935
8.3 C
-0.54 C
1939
9.4 C
+0.61 C
1940
8.8 C
-0.04 C
1941
9.4 C
+0.56 C
1942
9.1 C
+0.26 C
1943
9.3 C
+0.51 C
1944
8.2 C
-0.62 C
1945
8.7 C
-0.17 C
1946
9.8 C
+0.94 C
1949
9.0 C
+0.13 C
1950
7.4 C
-1.40 C
1951
6.8 C
-1.99 C
1952
8.4 C
-0.39 C
1953
9.1 C
+0.25 C
1954
9.6 C
+0.78 C
1955
8.3 C
-0.51 C
1956
9.0 C
+0.16 C
1957
8.3 C
-0.50 C
1958
8.9 C
+0.07 C
1959
8.6 C
-0.24 C
1960
8.0 C
-0.80 C
1961
9.2 C
+0.38 C
1962
8.9 C
+0.12 C
1963
10.2 C
+1.35 C
1964
9.2 C
+0.33 C
1965
9.0 C
+0.18 C
1966
8.4 C
-0.41 C
1968
9.2 C
+0.40 C
1970
8.5 C
-0.32 C
1971
8.3 C
-0.53 C
1972
7.9 C
-0.93 C
1973
9.0 C
+0.21 C
1974
9.6 C
+0.78 C
1975
8.4 C
-0.45 C
1976
9.4 C
+0.58 C
1977
9.6 C
+0.73 C
1978
7.6 C
-1.21 C
1980
9.3 C
+0.44 C
1981
9.9 C
+1.10 C
1982
7.7 C
-1.15 C
1983
8.3 C
-0.54 C
1984
8.6 C
-0.22 C
1986
9.1 C
+0.26 C
1987
10.3 C
+1.43 C
1988
8.9 C
+0.05 C
1991
9.5 C
+0.69 C
1992
9.0 C
+0.21 C
1993
7.2 C
-1.66 C
1994
9.2 C
+0.36 C
1995
8.9 C
+0.07 C
1996
7.4 C
-1.45 C
1998
9.7 C
+0.91 C
1999
10.5 C
+1.68 C
2000
9.5 C
+0.65 C
2002
9.4 C
+0.60 C
2004
10.1 C
+1.28 C
The fitted trend in annual mean temperature here over 1918 to 2004 is 0.08 C (0.00 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.14 F (-0.01 to 0.28) per decade. The slope is a straight line fitted to 69 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Merriman
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.08 C (0.00 to 0.16) per decade
0.14 F (-0.01 to 0.28) per decade
1918 to 2004
69
Not clearly different from zero
Mean daily maximum
-0.09 C (-0.20 to 0.02) per decade
-0.16 F (-0.36 to 0.03) per decade
1918 to 2004
69
Not clearly different from zero
Mean daily minimum
0.2 C (0.2 to 0.3) per decade
0.4 F (0.3 to 0.6) per decade
1918 to 2004
69
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
1897 to 2011
Yearly extremes at Merriman: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1936
40.0 C (104.0 F)
97
Coldest night (TNn)
-41.1 C (-42.0 F)
1983
-29.4 C (-20.9 F)
97
Wettest day (Rx1day)
177.8 mm (7.0 in)
1904
42.8 mm (1.7 in)
106
Wettest five days (Rx5day)
138.4 mm (5.4 in)
1919
62.9 mm (2.5 in)
106
Longest dry spell (CDD)
108 days
1898
35 days
106
Hottest day (TXx)
The hottest day of the year at Merriman, 1897 to 2011. The record is 44.4 C (111.9 F) in 1936, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at Merriman by year
Year
Hottest day (TXx)
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1903
n/a
1904
n/a
1905
n/a
1906
29.4 C (84.9 F)
1907
37.2 C (99.0 F)
1914
n/a
1915
9.4 C (48.9 F)
1917
38.3 C (100.9 F)
1918
36.7 C (98.1 F)
1919
38.9 C (102.0 F)
1920
37.2 C (99.0 F)
1921
38.3 C (100.9 F)
1922
38.9 C (102.0 F)
1923
36.7 C (98.1 F)
1924
38.9 C (102.0 F)
1925
38.9 C (102.0 F)
1926
41.1 C (106.0 F)
1927
38.9 C (102.0 F)
1928
41.1 C (106.0 F)
1929
43.3 C (109.9 F)
1930
40.6 C (105.1 F)
1931
41.1 C (106.0 F)
1932
38.3 C (100.9 F)
1933
40.6 C (105.1 F)
1934
42.8 C (109.0 F)
1935
40.6 C (105.1 F)
1936
44.4 C (111.9 F)
1937
41.1 C (106.0 F)
1938
41.1 C (106.0 F)
1939
43.3 C (109.9 F)
1940
43.3 C (109.9 F)
1941
39.4 C (102.9 F)
1942
39.4 C (102.9 F)
1943
40.6 C (105.1 F)
1944
38.3 C (100.9 F)
1945
40.0 C (104.0 F)
1946
40.0 C (104.0 F)
1947
42.8 C (109.0 F)
1948
30.6 C (87.1 F)
1949
38.3 C (100.9 F)
1950
35.6 C (96.1 F)
1951
37.8 C (100.0 F)
1952
42.2 C (108.0 F)
1953
39.4 C (102.9 F)
1954
42.2 C (108.0 F)
1955
41.1 C (106.0 F)
1956
38.9 C (102.0 F)
1957
39.4 C (102.9 F)
1958
37.8 C (100.0 F)
1959
40.0 C (104.0 F)
1960
40.6 C (105.1 F)
1961
41.7 C (107.1 F)
1962
41.1 C (106.0 F)
1963
41.7 C (107.1 F)
1964
43.3 C (109.9 F)
1965
42.8 C (109.0 F)
1966
42.2 C (108.0 F)
1967
37.8 C (100.0 F)
1968
40.6 C (105.1 F)
1969
39.4 C (102.9 F)
1970
41.1 C (106.0 F)
1971
37.8 C (100.0 F)
1972
35.0 C (95.0 F)
1973
41.7 C (107.1 F)
1974
38.9 C (102.0 F)
1975
38.3 C (100.9 F)
1976
38.3 C (100.9 F)
1977
37.8 C (100.0 F)
1978
37.8 C (100.0 F)
1979
40.0 C (104.0 F)
1980
41.7 C (107.1 F)
1981
40.6 C (105.1 F)
1982
40.6 C (105.1 F)
1983
40.0 C (104.0 F)
1984
37.8 C (100.0 F)
1985
42.2 C (108.0 F)
1986
39.4 C (102.9 F)
1987
40.6 C (105.1 F)
1988
42.8 C (109.0 F)
1989
42.2 C (108.0 F)
1990
40.6 C (105.1 F)
1991
39.4 C (102.9 F)
1992
36.7 C (98.1 F)
1993
37.2 C (99.0 F)
1994
38.3 C (100.9 F)
1995
42.2 C (108.0 F)
1996
37.8 C (100.0 F)
1997
40.6 C (105.1 F)
1998
41.1 C (106.0 F)
1999
38.3 C (100.9 F)
2000
41.1 C (106.0 F)
2001
40.6 C (105.1 F)
2002
42.8 C (109.0 F)
2003
31.1 C (88.0 F)
2004
40.0 C (104.0 F)
2005
40.0 C (104.0 F)
2006
43.9 C (111.0 F)
2008
37.8 C (100.0 F)
2009
36.7 C (98.1 F)
2010
37.8 C (100.0 F)
2011
26.7 C (80.1 F)
Coldest night (TNn)
The coldest night of the year at Merriman, 1897 to 2011. The record is -41.1 C (-42.0 F) in 1983, marked on the chart; the median year is -29.4 C (-20.9 F).
Coldest night (TNn) at Merriman by year
Year
Coldest night (TNn)
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1903
n/a
1904
n/a
1905
n/a
1906
-1.7 C (28.9 F)
1907
-4.4 C (24.1 F)
1914
n/a
1915
-31.7 C (-25.1 F)
1917
-30.6 C (-23.1 F)
1918
-34.4 C (-29.9 F)
1919
-32.8 C (-27.0 F)
1920
-29.4 C (-20.9 F)
1921
-26.1 C (-15.0 F)
1922
-31.7 C (-25.1 F)
1923
-30.0 C (-22.0 F)
1924
-35.0 C (-31.0 F)
1925
-28.3 C (-18.9 F)
1926
-28.3 C (-18.9 F)
1927
-30.0 C (-22.0 F)
1928
-30.6 C (-23.1 F)
1929
-28.9 C (-20.0 F)
1930
-37.2 C (-35.0 F)
1931
-20.6 C (-5.1 F)
1932
-28.3 C (-18.9 F)
1933
-34.4 C (-29.9 F)
1934
-23.9 C (-11.0 F)
1935
-33.9 C (-29.0 F)
1936
-40.0 C (-40.0 F)
1937
-31.1 C (-24.0 F)
1938
-28.3 C (-18.9 F)
1939
-33.3 C (-27.9 F)
1940
-31.7 C (-25.1 F)
1941
-23.3 C (-9.9 F)
1942
-33.3 C (-27.9 F)
1943
-32.8 C (-27.0 F)
1944
-30.6 C (-23.1 F)
1945
-26.7 C (-16.1 F)
1946
-29.4 C (-20.9 F)
1947
-25.6 C (-14.1 F)
1948
-23.9 C (-11.0 F)
1949
-30.6 C (-23.1 F)
1950
-35.0 C (-31.0 F)
1951
-31.7 C (-25.1 F)
1952
-27.8 C (-18.0 F)
1953
-26.7 C (-16.1 F)
1954
-28.9 C (-20.0 F)
1955
-27.8 C (-18.0 F)
1956
-25.6 C (-14.1 F)
1957
-32.8 C (-27.0 F)
1958
-25.6 C (-14.1 F)
1959
-33.3 C (-27.9 F)
1960
-27.8 C (-18.0 F)
1961
-24.4 C (-11.9 F)
1962
-31.7 C (-25.1 F)
1963
-33.3 C (-27.9 F)
1964
-30.6 C (-23.1 F)
1965
-25.6 C (-14.1 F)
1966
-30.0 C (-22.0 F)
1967
-21.7 C (-7.1 F)
1968
-27.8 C (-18.0 F)
1969
-27.2 C (-17.0 F)
1970
-28.3 C (-18.9 F)
1971
-31.1 C (-24.0 F)
1972
-30.6 C (-23.1 F)
1973
-30.0 C (-22.0 F)
1974
-31.7 C (-25.1 F)
1975
-29.4 C (-20.9 F)
1976
-28.9 C (-20.0 F)
1977
-29.4 C (-20.9 F)
1978
-31.7 C (-25.1 F)
1979
-31.1 C (-24.0 F)
1980
-29.4 C (-20.9 F)
1981
-28.3 C (-18.9 F)
1982
-33.9 C (-29.0 F)
1983
-41.1 C (-42.0 F)
1984
-28.9 C (-20.0 F)
1985
-31.1 C (-24.0 F)
1986
-30.6 C (-23.1 F)
1987
-22.8 C (-9.0 F)
1988
-30.6 C (-23.1 F)
1989
-37.8 C (-36.0 F)
1990
-34.4 C (-29.9 F)
1991
-25.0 C (-13.0 F)
1992
-25.0 C (-13.0 F)
1993
-29.4 C (-20.9 F)
1994
-31.1 C (-24.0 F)
1995
-25.6 C (-14.1 F)
1996
-35.6 C (-32.1 F)
1997
-26.1 C (-15.0 F)
1998
-29.4 C (-20.9 F)
1999
-24.4 C (-11.9 F)
2000
-27.8 C (-18.0 F)
2001
-21.1 C (-6.0 F)
2002
-25.0 C (-13.0 F)
2003
-27.2 C (-17.0 F)
2004
-26.7 C (-16.1 F)
2005
-26.1 C (-15.0 F)
2006
-30.0 C (-22.0 F)
2008
-30.0 C (-22.0 F)
2009
-26.1 C (-15.0 F)
2010
-34.4 C (-29.9 F)
2011
-26.7 C (-16.1 F)
Wettest day (Rx1day)
The wettest day of the year at Merriman, 1897 to 2011. The record is 177.8 mm (7.0 in) in 1904, marked on the chart; the median year is 42.8 mm (1.7 in).
Wettest day (Rx1day) at Merriman by year
Year
Wettest day (Rx1day)
1897
34.3 mm (1.4 in)
1898
50.8 mm (2.0 in)
1899
50.8 mm (2.0 in)
1900
31.8 mm (1.3 in)
1901
15.2 mm (0.6 in)
1903
12.7 mm (0.5 in)
1904
177.8 mm (7.0 in)
1905
60.5 mm (2.4 in)
1906
77.2 mm (3.0 in)
1907
10.2 mm (0.4 in)
1914
27.9 mm (1.1 in)
1915
38.1 mm (1.5 in)
1917
53.3 mm (2.1 in)
1918
52.3 mm (2.1 in)
1919
108.0 mm (4.3 in)
1920
95.3 mm (3.8 in)
1921
62.0 mm (2.4 in)
1922
52.1 mm (2.1 in)
1923
46.7 mm (1.8 in)
1924
24.6 mm (1.0 in)
1925
77.2 mm (3.0 in)
1926
62.7 mm (2.5 in)
1927
57.4 mm (2.3 in)
1928
48.3 mm (1.9 in)
1929
59.7 mm (2.4 in)
1930
47.0 mm (1.9 in)
1931
25.1 mm (1.0 in)
1932
57.2 mm (2.3 in)
1933
49.5 mm (1.9 in)
1934
48.0 mm (1.9 in)
1935
56.1 mm (2.2 in)
1936
38.1 mm (1.5 in)
1937
36.8 mm (1.4 in)
1938
42.4 mm (1.7 in)
1939
46.7 mm (1.8 in)
1940
60.7 mm (2.4 in)
1941
37.6 mm (1.5 in)
1942
47.8 mm (1.9 in)
1943
25.4 mm (1.0 in)
1944
36.1 mm (1.4 in)
1945
23.4 mm (0.9 in)
1946
66.0 mm (2.6 in)
1947
30.5 mm (1.2 in)
1948
27.9 mm (1.1 in)
1949
29.2 mm (1.1 in)
1950
33.0 mm (1.3 in)
1951
63.5 mm (2.5 in)
1952
29.2 mm (1.1 in)
1953
36.8 mm (1.4 in)
1954
36.3 mm (1.4 in)
1955
45.7 mm (1.8 in)
1956
32.3 mm (1.3 in)
1957
35.3 mm (1.4 in)
1958
55.9 mm (2.2 in)
1959
25.7 mm (1.0 in)
1960
36.6 mm (1.4 in)
1961
40.6 mm (1.6 in)
1962
63.5 mm (2.5 in)
1963
45.7 mm (1.8 in)
1964
39.6 mm (1.6 in)
1965
24.1 mm (0.9 in)
1966
38.9 mm (1.5 in)
1967
22.9 mm (0.9 in)
1968
72.4 mm (2.9 in)
1969
35.6 mm (1.4 in)
1970
34.3 mm (1.4 in)
1971
63.0 mm (2.5 in)
1972
32.3 mm (1.3 in)
1973
27.9 mm (1.1 in)
1974
55.4 mm (2.2 in)
1975
33.0 mm (1.3 in)
1976
40.6 mm (1.6 in)
1977
31.8 mm (1.3 in)
1978
39.6 mm (1.6 in)
1979
53.3 mm (2.1 in)
1980
43.2 mm (1.7 in)
1981
44.5 mm (1.8 in)
1982
44.7 mm (1.8 in)
1983
96.5 mm (3.8 in)
1984
23.6 mm (0.9 in)
1985
29.7 mm (1.2 in)
1986
58.9 mm (2.3 in)
1987
28.2 mm (1.1 in)
1988
41.9 mm (1.6 in)
1989
25.1 mm (1.0 in)
1990
30.7 mm (1.2 in)
1991
67.6 mm (2.7 in)
1992
29.7 mm (1.2 in)
1993
33.8 mm (1.3 in)
1994
43.7 mm (1.7 in)
1995
31.8 mm (1.3 in)
1996
75.4 mm (3.0 in)
1997
38.1 mm (1.5 in)
1998
106.7 mm (4.2 in)
1999
67.1 mm (2.6 in)
2000
62.2 mm (2.4 in)
2001
57.4 mm (2.3 in)
2002
49.8 mm (2.0 in)
2003
16.8 mm (0.7 in)
2004
61.7 mm (2.4 in)
2005
46.5 mm (1.8 in)
2006
30.0 mm (1.2 in)
2008
40.6 mm (1.6 in)
2009
48.3 mm (1.9 in)
2010
64.8 mm (2.6 in)
2011
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Merriman, 1897 to 2011. The record is 138.4 mm (5.4 in) in 1919, marked on the chart; the median year is 62.9 mm (2.5 in).
Wettest five days (Rx5day) at Merriman by year
Year
Wettest five days (Rx5day)
1897
41.9 mm (1.6 in)
1898
71.1 mm (2.8 in)
1899
55.9 mm (2.2 in)
1900
43.1 mm (1.7 in)
1901
25.4 mm (1.0 in)
1903
25.6 mm (1.0 in)
1904
127.0 mm (5.0 in)
1905
93.7 mm (3.7 in)
1906
77.2 mm (3.0 in)
1907
10.2 mm (0.4 in)
1914
20.3 mm (0.8 in)
1915
38.1 mm (1.5 in)
1917
63.7 mm (2.5 in)
1918
74.1 mm (2.9 in)
1919
138.4 mm (5.4 in)
1920
109.5 mm (4.3 in)
1921
63.0 mm (2.5 in)
1922
69.4 mm (2.7 in)
1923
76.2 mm (3.0 in)
1924
45.9 mm (1.8 in)
1925
132.5 mm (5.2 in)
1926
65.8 mm (2.6 in)
1927
96.7 mm (3.8 in)
1928
67.1 mm (2.6 in)
1929
59.7 mm (2.4 in)
1930
78.0 mm (3.1 in)
1931
58.6 mm (2.3 in)
1932
63.8 mm (2.5 in)
1933
68.3 mm (2.7 in)
1934
51.8 mm (2.0 in)
1935
84.1 mm (3.3 in)
1936
72.0 mm (2.8 in)
1937
50.5 mm (2.0 in)
1938
80.0 mm (3.1 in)
1939
51.9 mm (2.0 in)
1940
70.6 mm (2.8 in)
1941
72.5 mm (2.9 in)
1942
115.8 mm (4.6 in)
1943
37.1 mm (1.5 in)
1944
79.8 mm (3.1 in)
1945
37.1 mm (1.5 in)
1946
81.8 mm (3.2 in)
1947
62.1 mm (2.4 in)
1948
38.3 mm (1.5 in)
1949
29.2 mm (1.1 in)
1950
45.5 mm (1.8 in)
1951
77.3 mm (3.0 in)
1952
54.6 mm (2.1 in)
1953
61.7 mm (2.4 in)
1954
52.3 mm (2.1 in)
1955
67.6 mm (2.7 in)
1956
50.8 mm (2.0 in)
1957
56.4 mm (2.2 in)
1958
67.1 mm (2.6 in)
1959
62.9 mm (2.5 in)
1960
57.4 mm (2.3 in)
1961
75.6 mm (3.0 in)
1962
117.9 mm (4.6 in)
1963
48.7 mm (1.9 in)
1964
75.5 mm (3.0 in)
1965
71.9 mm (2.8 in)
1966
38.9 mm (1.5 in)
1967
65.6 mm (2.6 in)
1968
77.5 mm (3.1 in)
1969
61.0 mm (2.4 in)
1970
58.2 mm (2.3 in)
1971
106.7 mm (4.2 in)
1972
56.8 mm (2.2 in)
1973
50.6 mm (2.0 in)
1974
58.7 mm (2.3 in)
1975
60.1 mm (2.4 in)
1976
49.8 mm (2.0 in)
1977
48.2 mm (1.9 in)
1978
68.6 mm (2.7 in)
1979
59.1 mm (2.3 in)
1980
49.8 mm (2.0 in)
1981
63.7 mm (2.5 in)
1982
101.4 mm (4.0 in)
1983
109.7 mm (4.3 in)
1984
34.8 mm (1.4 in)
1985
50.0 mm (2.0 in)
1986
92.0 mm (3.6 in)
1987
47.7 mm (1.9 in)
1988
54.2 mm (2.1 in)
1989
32.1 mm (1.3 in)
1990
36.5 mm (1.4 in)
1991
76.3 mm (3.0 in)
1992
86.0 mm (3.4 in)
1993
58.1 mm (2.3 in)
1994
48.8 mm (1.9 in)
1995
60.4 mm (2.4 in)
1996
106.2 mm (4.2 in)
1997
49.5 mm (1.9 in)
1998
119.2 mm (4.7 in)
1999
103.2 mm (4.1 in)
2000
62.2 mm (2.4 in)
2001
66.8 mm (2.6 in)
2002
62.8 mm (2.5 in)
2003
24.6 mm (1.0 in)
2004
61.7 mm (2.4 in)
2005
90.7 mm (3.6 in)
2006
33.7 mm (1.3 in)
2008
91.7 mm (3.6 in)
2009
68.6 mm (2.7 in)
2010
107.2 mm (4.2 in)
2011
76.2 mm (3.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Merriman, 1897 to 2011. The record is 108 days in 1898, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Merriman by year
Year
Longest dry spell (CDD)
1897
28 days
1898
108 days
1899
59 days
1900
61 days
1901
31 days
1903
7 days
1904
29 days
1905
31 days
1906
34 days
1907
29 days
1914
11 days
1915
13 days
1917
18 days
1918
31 days
1919
32 days
1920
49 days
1921
49 days
1922
34 days
1923
49 days
1924
22 days
1925
38 days
1926
51 days
1927
32 days
1928
75 days
1929
33 days
1930
41 days
1931
33 days
1932
48 days
1933
43 days
1934
37 days
1935
49 days
1936
35 days
1937
51 days
1938
56 days
1939
53 days
1940
31 days
1941
48 days
1942
40 days
1943
53 days
1944
22 days
1945
50 days
1946
35 days
1947
24 days
1948
37 days
1949
51 days
1950
35 days
1951
53 days
1952
33 days
1953
32 days
1954
38 days
1955
38 days
1956
24 days
1957
52 days
1958
30 days
1959
36 days
1960
26 days
1961
43 days
1962
51 days
1963
59 days
1964
71 days
1965
52 days
1966
43 days
1967
33 days
1968
44 days
1969
36 days
1970
66 days
1971
29 days
1972
56 days
1973
23 days
1974
37 days
1975
41 days
1976
29 days
1977
38 days
1978
44 days
1979
35 days
1980
40 days
1981
86 days
1982
26 days
1983
32 days
1984
20 days
1985
26 days
1986
32 days
1987
35 days
1988
40 days
1989
33 days
1990
38 days
1991
31 days
1992
39 days
1993
31 days
1994
28 days
1995
25 days
1996
23 days
1997
45 days
1998
39 days
1999
60 days
2000
31 days
2001
28 days
2002
27 days
2003
18 days
2004
32 days
2005
33 days
2006
44 days
2008
24 days
2009
26 days
2010
37 days
2011
19 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
69 years with a frost
Across 69 years with a frost, the median last spring frost at Merriman falls on 14 May and the median first autumn frost on 21 September, which leaves a median of 132 days between them.
In 1966 to 2004 the median growing season was 138 days. That is 11 days more than in 1918 to 1956.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
Frost dates and growing season at Merriman
Measure
Median, all years
Earliest period (1918 to 1956)
Recent period (1966 to 2004)
Recent against earliest
Fitted trend
Last spring frost
14 May
18 May
8 May
10 days earlier
-1.5 days per decade
First autumn frost
21 September
21 September
26 September
5 days later
+1.2 days per decade
Growing days
132 days
127 days
138 days
11 days more
+2.7 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
79 years, 1898 to 2005
A day with at least 42.8 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 116.2 mm (4.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Merriman: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
42.8 mm (1.7 in)
5 years
59.4 mm (2.3 in)
10 years
71.6 mm (2.8 in)
25 years
88.3 mm (3.5 in)
50 years
101.8 mm (4.0 in)
100 years
116.2 mm (4.6 in)
Longer than the 79 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, 79 years of values from 1898 to 2005.
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: 108.0 mm (4.3 in) in 1919; 106.7 mm (4.2 in) in 1998; 96.5 mm (3.8 in) in 1983.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Merriman standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Merriman 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.