Thompson Welcome Ctr Weather Records (USC00428705)
Record envelope, standing records and threshold days for Thompson Welcome Ctr (USC00428705), Utah, United States, with 116 years of record.
Key Facts for Thompson Welcome Ctr
Thompson Welcome Ctr (USC00428705) is a weather station in Utah, United States at 38.95 latitude and -109.69 longitude, 1,548 m (5,077 ft) above sea level.
The station reports from 1911 to 2026, 116 years of record.
1,464 records set at Thompson Welcome Ctr still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Thompson Welcome Ctr set a daily record precipitation of 7.6 mm (0.30 in) on 14 April 2026.
About the Station
Location: Utah, United States, 38.95 latitude, -109.69 longitude.
Elevation: 1,548 m (5,077 ft).
Period of record: 1911 to 2026, 116 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 Thompson Welcome Ctr. 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 Thompson Welcome Ctr, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-13.3 C (8.1 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-12.2 C (10.0 F)
n/a
n/a
May
35.6 C (96.1 F)
-5.0 C (23.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
1.1 C (34.0 F)
n/a
n/a
Jul
43.3 C (109.9 F)
5.6 C (42.1 F)
n/a
n/a
Aug
41.1 C (106.0 F)
4.4 C (39.9 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Thompson Welcome Ctr still stand. 1943 holds the most, with 60.
Standing records at Thompson Welcome Ctr by the year they were set
Year set
Standing records
1911
13
1912
19
1913
41
1915
20
1916
7
1919
22
1920
26
1921
24
1922
44
1923
15
1924
30
1925
29
1926
43
1927
52
1928
5
1929
8
1930
6
1931
34
1932
11
1933
25
1934
16
1935
10
1936
18
1937
25
1938
15
1939
21
1940
3
1941
10
1942
14
1943
60
1944
4
1945
10
1946
15
1947
9
1948
25
1949
11
1950
7
1951
5
1952
10
1953
10
1954
12
1955
36
1956
16
1957
9
1958
19
1959
11
1960
9
1961
18
1962
18
1963
20
1964
8
1965
23
1966
10
1967
13
1968
8
1969
17
1970
13
1971
16
1972
21
1973
12
1974
11
1975
27
1976
7
1977
10
1978
15
1979
20
1980
21
1981
19
1982
7
1983
12
1984
21
1985
18
1986
20
1987
13
1988
14
1989
29
1990
28
1991
24
1992
10
1993
7
1994
25
2020
2
2021
11
2022
12
All-Time Record Progression
2 new records
2 all-time records were set at Thompson Welcome Ctr between 5 June 1948 and 8 June 1948. Each dot is a new record.
When Thompson Welcome Ctr set new all-time records
Date
Kind
Detail
1948-06-05
Record high minimum temperature
Record high minimum temperature 30.6 C (87.1 F)
1948-06-08
Record high minimum temperature
Record high minimum temperature 31.1 C (88.0 F)
Wettest Day of Each Month
Nov: 102.1 mm (4.0 in)
The wettest day on record for each calendar month at Thompson Welcome Ctr. The most was 102.1 mm (4.0 in) on 24 November 1925.
Record daily precipitation for each month at Thompson Welcome Ctr
Month
Record daily precipitation (mm)
Date
Jan
31.5 mm (1.2 in)
3 January 1977
Feb
23.1 mm (0.9 in)
7 February 1966
Mar
33.0 mm (1.3 in)
19 March 1935
Apr
28.4 mm (1.1 in)
6 April 1993
May
48.8 mm (1.9 in)
6 May 1973
Jun
36.6 mm (1.4 in)
8 June 1941
Jul
44.2 mm (1.7 in)
31 July 2022
Aug
50.8 mm (2.0 in)
29 August 1951
Sep
49.5 mm (1.9 in)
13 September 1927
Oct
44.2 mm (1.7 in)
14 October 1941
Nov
102.1 mm (4.0 in)
24 November 1925
Dec
27.9 mm (1.1 in)
27 December 1984
Period of Record Coverage
1911 to 2022
Complete yearUnder 90 percent of days
86 years of record at Thompson Welcome Ctr, 1911 to 2022. 26 years have data for under 90 percent of days and are left out of rankings: 1911, 1912, 1913, 1914, 1916, 1918, 1919, 1929 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Thompson Welcome Ctr, 1915 to 2021. Blue stripes are years cooler than the station's own mean of 11.7 C (53.1 F); red stripes are warmer. The coolest year was 1937, at 10.3 C (50.5 F), and the warmest was 1943, at 13.5 C (56.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Thompson Welcome Ctr as warming stripes, 1915 to 2021
Year
Annual mean temperature
Difference from the station mean
1915
11.9 C
+0.14 C
1920
10.8 C
-0.94 C
1921
12.9 C
+1.12 C
1922
12.0 C
+0.27 C
1923
11.9 C
+0.14 C
1924
11.5 C
-0.23 C
1925
12.0 C
+0.23 C
1926
13.2 C
+1.50 C
1927
12.8 C
+1.07 C
1928
11.8 C
+0.10 C
1930
11.0 C
-0.74 C
1932
10.3 C
-1.41 C
1934
13.0 C
+1.23 C
1935
10.9 C
-0.87 C
1937
10.3 C
-1.44 C
1938
11.7 C
-0.07 C
1940
12.2 C
+0.48 C
1943
13.5 C
+1.75 C
1944
11.8 C
+0.09 C
1945
11.5 C
-0.26 C
1946
11.8 C
+0.03 C
1953
12.2 C
+0.44 C
1954
13.0 C
+1.25 C
1960
11.6 C
-0.18 C
1961
10.4 C
-1.31 C
1967
11.7 C
-0.05 C
1970
12.0 C
+0.26 C
1974
11.5 C
-0.19 C
1975
10.8 C
-0.96 C
1976
12.1 C
+0.37 C
1977
13.0 C
+1.26 C
1978
11.9 C
+0.20 C
1979
10.3 C
-1.40 C
1980
12.3 C
+0.54 C
1981
13.1 C
+1.32 C
1982
10.7 C
-1.02 C
1986
12.0 C
+0.30 C
1987
11.4 C
-0.34 C
1988
10.5 C
-1.26 C
1989
11.0 C
-0.74 C
1990
11.7 C
-0.01 C
1993
10.5 C
-1.23 C
2021
12.2 C
+0.48 C
The fitted trend in annual mean temperature here over 1915 to 2021 is -0.05 C (-0.15 to 0.05) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.1) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Thompson Welcome Ctr
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.05 C (-0.15 to 0.05) per decade
-0.1 F (-0.3 to 0.1) per decade
1915 to 2021
43
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.6 to -0.2) per decade
1915 to 2021
43
Fall
Mean daily minimum
0.14 C (-0.01 to 0.29) per decade
0.25 F (-0.01 to 0.52) per decade
1915 to 2021
43
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
1911 to 2026
Yearly extremes at Thompson Welcome Ctr: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1931
37.8 C (100.0 F)
86
Coldest night (TNn)
-31.7 C (-25.1 F)
1937
-18.3 C (-0.9 F)
86
Wettest day (Rx1day)
102.1 mm (4.0 in)
1925
23.5 mm (0.9 in)
90
Wettest five days (Rx5day)
81.1 mm (3.2 in)
1941
33.0 mm (1.3 in)
85
Longest dry spell (CDD)
127 days
1916
43 days
89
Hottest day (TXx)
The hottest day of the year at Thompson Welcome Ctr, 1911 to 2026. The record is 43.3 C (109.9 F) in 1931, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Thompson Welcome Ctr by year
Year
Hottest day (TXx)
1911
35.6 C (96.1 F)
1912
35.6 C (96.1 F)
1913
38.9 C (102.0 F)
1914
30.0 C (86.0 F)
1915
36.7 C (98.1 F)
1916
35.0 C (95.0 F)
1918
28.3 C (82.9 F)
1919
37.2 C (99.0 F)
1920
41.1 C (106.0 F)
1921
38.3 C (100.9 F)
1922
40.0 C (104.0 F)
1923
40.6 C (105.1 F)
1924
40.6 C (105.1 F)
1925
42.2 C (108.0 F)
1926
41.7 C (107.1 F)
1927
41.7 C (107.1 F)
1928
40.0 C (104.0 F)
1929
37.8 C (100.0 F)
1930
38.3 C (100.9 F)
1931
43.3 C (109.9 F)
1932
38.9 C (102.0 F)
1933
38.3 C (100.9 F)
1934
40.0 C (104.0 F)
1935
39.4 C (102.9 F)
1936
39.4 C (102.9 F)
1937
40.0 C (104.0 F)
1938
38.9 C (102.0 F)
1939
39.4 C (102.9 F)
1940
38.3 C (100.9 F)
1941
37.2 C (99.0 F)
1942
37.8 C (100.0 F)
1943
38.3 C (100.9 F)
1944
37.2 C (99.0 F)
1945
37.2 C (99.0 F)
1946
38.3 C (100.9 F)
1947
38.9 C (102.0 F)
1948
35.6 C (96.1 F)
1949
37.8 C (100.0 F)
1950
35.6 C (96.1 F)
1951
36.1 C (97.0 F)
1952
37.8 C (100.0 F)
1953
37.2 C (99.0 F)
1954
38.9 C (102.0 F)
1955
37.2 C (99.0 F)
1956
37.2 C (99.0 F)
1957
36.7 C (98.1 F)
1958
38.3 C (100.9 F)
1959
37.2 C (99.0 F)
1960
37.8 C (100.0 F)
1961
38.3 C (100.9 F)
1962
37.8 C (100.0 F)
1963
37.2 C (99.0 F)
1964
37.8 C (100.0 F)
1965
35.0 C (95.0 F)
1966
36.7 C (98.1 F)
1967
36.1 C (97.0 F)
1968
36.7 C (98.1 F)
1969
38.9 C (102.0 F)
1970
38.3 C (100.9 F)
1971
37.8 C (100.0 F)
1972
37.2 C (99.0 F)
1973
37.8 C (100.0 F)
1974
37.2 C (99.0 F)
1975
36.7 C (98.1 F)
1976
38.3 C (100.9 F)
1977
37.2 C (99.0 F)
1978
37.2 C (99.0 F)
1979
37.2 C (99.0 F)
1980
36.1 C (97.0 F)
1981
38.9 C (102.0 F)
1982
37.8 C (100.0 F)
1983
36.7 C (98.1 F)
1984
36.7 C (98.1 F)
1985
40.6 C (105.1 F)
1986
39.4 C (102.9 F)
1987
37.2 C (99.0 F)
1988
38.9 C (102.0 F)
1989
40.6 C (105.1 F)
1990
42.2 C (108.0 F)
1991
39.4 C (102.9 F)
1992
37.8 C (100.0 F)
1993
37.8 C (100.0 F)
1994
40.6 C (105.1 F)
2020
23.3 C (73.9 F)
2021
40.6 C (105.1 F)
2022
37.8 C (100.0 F)
2023
n/a
2024
n/a
2025
n/a
2026
n/a
Coldest night (TNn)
The coldest night of the year at Thompson Welcome Ctr, 1911 to 2026. The record is -31.7 C (-25.1 F) in 1937, marked on the chart; the median year is -18.3 C (-0.9 F).
Coldest night (TNn) at Thompson Welcome Ctr by year
Year
Coldest night (TNn)
1911
-17.8 C (0.0 F)
1912
-24.4 C (-11.9 F)
1913
-27.2 C (-17.0 F)
1914
0.6 C (33.1 F)
1915
-18.9 C (-2.0 F)
1916
-22.2 C (-8.0 F)
1918
-17.8 C (0.0 F)
1919
-24.4 C (-11.9 F)
1920
-21.1 C (-6.0 F)
1921
-13.9 C (7.0 F)
1922
-17.8 C (0.0 F)
1923
-15.6 C (3.9 F)
1924
-25.0 C (-13.0 F)
1925
-17.8 C (0.0 F)
1926
-19.4 C (-2.9 F)
1927
-15.6 C (3.9 F)
1928
-18.3 C (-0.9 F)
1929
-23.3 C (-9.9 F)
1930
-25.6 C (-14.1 F)
1931
-23.3 C (-9.9 F)
1932
-22.2 C (-8.0 F)
1933
-26.7 C (-16.1 F)
1934
-12.2 C (10.0 F)
1935
-17.2 C (1.0 F)
1936
-17.2 C (1.0 F)
1937
-31.7 C (-25.1 F)
1938
-16.7 C (1.9 F)
1939
-20.6 C (-5.1 F)
1940
-17.8 C (0.0 F)
1941
-15.6 C (3.9 F)
1942
-19.4 C (-2.9 F)
1943
-17.2 C (1.0 F)
1944
-17.8 C (0.0 F)
1945
-17.2 C (1.0 F)
1946
-14.4 C (6.1 F)
1947
-17.2 C (1.0 F)
1948
-18.9 C (-2.0 F)
1949
-18.9 C (-2.0 F)
1950
-22.2 C (-8.0 F)
1951
-20.6 C (-5.1 F)
1952
-18.3 C (-0.9 F)
1953
-14.4 C (6.1 F)
1954
-15.0 C (5.0 F)
1955
-20.6 C (-5.1 F)
1956
-14.4 C (6.1 F)
1957
-10.0 C (14.0 F)
1958
-12.8 C (9.0 F)
1959
-15.6 C (3.9 F)
1960
-20.0 C (-4.0 F)
1961
-22.2 C (-8.0 F)
1962
-24.4 C (-11.9 F)
1963
-30.6 C (-23.1 F)
1964
-17.8 C (0.0 F)
1965
-13.3 C (8.1 F)
1966
-17.8 C (0.0 F)
1967
-20.0 C (-4.0 F)
1968
-12.2 C (10.0 F)
1969
-15.0 C (5.0 F)
1970
-15.0 C (5.0 F)
1971
-26.1 C (-15.0 F)
1972
-18.3 C (-0.9 F)
1973
-23.9 C (-11.0 F)
1974
-21.7 C (-7.1 F)
1975
-20.6 C (-5.1 F)
1976
-18.3 C (-0.9 F)
1977
-18.3 C (-0.9 F)
1978
-22.2 C (-8.0 F)
1979
-24.4 C (-11.9 F)
1980
-13.3 C (8.1 F)
1981
-12.2 C (10.0 F)
1982
-21.7 C (-7.1 F)
1983
-12.8 C (9.0 F)
1984
-24.4 C (-11.9 F)
1985
-17.2 C (1.0 F)
1986
-12.8 C (9.0 F)
1987
-20.6 C (-5.1 F)
1988
-21.7 C (-7.1 F)
1989
-27.8 C (-18.0 F)
1990
-22.8 C (-9.0 F)
1991
-19.4 C (-2.9 F)
1992
-22.2 C (-8.0 F)
1993
-16.1 C (3.0 F)
1994
-15.6 C (3.9 F)
2020
-14.4 C (6.1 F)
2021
-13.3 C (8.1 F)
2022
-17.8 C (0.0 F)
2023
n/a
2024
n/a
2025
n/a
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Thompson Welcome Ctr, 1911 to 2026. The record is 102.1 mm (4.0 in) in 1925, marked on the chart; the median year is 23.5 mm (0.9 in).
Wettest day (Rx1day) at Thompson Welcome Ctr by year
Year
Wettest day (Rx1day)
1911
40.9 mm (1.6 in)
1912
31.8 mm (1.3 in)
1913
25.1 mm (1.0 in)
1914
0.8 mm (0.03 in)
1915
25.4 mm (1.0 in)
1916
27.4 mm (1.1 in)
1918
25.4 mm (1.0 in)
1919
15.2 mm (0.6 in)
1920
22.9 mm (0.9 in)
1921
22.9 mm (0.9 in)
1922
15.2 mm (0.6 in)
1923
30.5 mm (1.2 in)
1924
27.9 mm (1.1 in)
1925
102.1 mm (4.0 in)
1926
25.4 mm (1.0 in)
1927
49.5 mm (1.9 in)
1928
27.9 mm (1.1 in)
1929
22.9 mm (0.9 in)
1930
24.9 mm (1.0 in)
1931
16.5 mm (0.6 in)
1932
21.6 mm (0.9 in)
1933
15.2 mm (0.6 in)
1934
33.0 mm (1.3 in)
1935
33.0 mm (1.3 in)
1936
27.9 mm (1.1 in)
1937
20.3 mm (0.8 in)
1938
26.7 mm (1.1 in)
1939
22.9 mm (0.9 in)
1940
23.6 mm (0.9 in)
1941
44.2 mm (1.7 in)
1942
20.8 mm (0.8 in)
1943
26.9 mm (1.1 in)
1944
20.3 mm (0.8 in)
1945
26.2 mm (1.0 in)
1946
20.3 mm (0.8 in)
1947
40.6 mm (1.6 in)
1948
27.9 mm (1.1 in)
1949
25.9 mm (1.0 in)
1950
25.4 mm (1.0 in)
1951
50.8 mm (2.0 in)
1952
18.8 mm (0.7 in)
1953
22.9 mm (0.9 in)
1954
27.7 mm (1.1 in)
1955
15.2 mm (0.6 in)
1956
30.7 mm (1.2 in)
1957
26.7 mm (1.1 in)
1958
23.4 mm (0.9 in)
1959
15.0 mm (0.6 in)
1960
15.7 mm (0.6 in)
1961
27.4 mm (1.1 in)
1962
23.1 mm (0.9 in)
1963
14.2 mm (0.6 in)
1964
11.2 mm (0.4 in)
1965
35.1 mm (1.4 in)
1966
23.1 mm (0.9 in)
1967
31.0 mm (1.2 in)
1968
23.4 mm (0.9 in)
1969
30.5 mm (1.2 in)
1970
17.3 mm (0.7 in)
1971
23.9 mm (0.9 in)
1972
26.7 mm (1.1 in)
1973
48.8 mm (1.9 in)
1974
18.0 mm (0.7 in)
1975
15.2 mm (0.6 in)
1976
13.0 mm (0.5 in)
1977
31.5 mm (1.2 in)
1978
20.3 mm (0.8 in)
1979
25.9 mm (1.0 in)
1980
22.4 mm (0.9 in)
1981
19.8 mm (0.8 in)
1982
27.7 mm (1.1 in)
1983
22.9 mm (0.9 in)
1984
27.9 mm (1.1 in)
1985
21.3 mm (0.8 in)
1986
18.8 mm (0.7 in)
1987
19.8 mm (0.8 in)
1988
23.1 mm (0.9 in)
1989
22.9 mm (0.9 in)
1990
13.5 mm (0.5 in)
1991
23.4 mm (0.9 in)
1992
35.6 mm (1.4 in)
1993
30.5 mm (1.2 in)
1994
30.5 mm (1.2 in)
2020
4.8 mm (0.19 in)
2021
35.3 mm (1.4 in)
2022
44.2 mm (1.7 in)
2023
14.7 mm (0.6 in)
2024
18.3 mm (0.7 in)
2025
11.4 mm (0.4 in)
2026
15.7 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Thompson Welcome Ctr, 1911 to 2026. The record is 81.1 mm (3.2 in) in 1941, marked on the chart; the median year is 33.0 mm (1.3 in).
Wettest five days (Rx5day) at Thompson Welcome Ctr by year
Year
Wettest five days (Rx5day)
1911
72.6 mm (2.9 in)
1912
54.1 mm (2.1 in)
1913
44.7 mm (1.8 in)
1914
0.8 mm (0.03 in)
1915
7.6 mm (0.30 in)
1916
27.4 mm (1.1 in)
1918
2.5 mm (0.10 in)
1919
n/a
1920
n/a
1921
22.9 mm (0.9 in)
1922
17.0 mm (0.7 in)
1923
n/a
1924
29.2 mm (1.1 in)
1925
n/a
1926
53.4 mm (2.1 in)
1927
66.0 mm (2.6 in)
1928
20.0 mm (0.8 in)
1929
n/a
1930
18.5 mm (0.7 in)
1931
5.0 mm (0.20 in)
1932
41.9 mm (1.6 in)
1933
27.5 mm (1.1 in)
1934
45.8 mm (1.8 in)
1935
48.3 mm (1.9 in)
1936
34.3 mm (1.4 in)
1937
15.2 mm (0.6 in)
1938
37.8 mm (1.5 in)
1939
40.7 mm (1.6 in)
1940
36.1 mm (1.4 in)
1941
81.1 mm (3.2 in)
1942
22.8 mm (0.9 in)
1943
26.9 mm (1.1 in)
1944
19.8 mm (0.8 in)
1945
39.6 mm (1.6 in)
1946
50.7 mm (2.0 in)
1947
67.2 mm (2.6 in)
1948
27.9 mm (1.1 in)
1949
34.3 mm (1.4 in)
1950
25.4 mm (1.0 in)
1951
57.9 mm (2.3 in)
1952
26.4 mm (1.0 in)
1953
29.2 mm (1.1 in)
1954
33.0 mm (1.3 in)
1955
27.9 mm (1.1 in)
1956
31.7 mm (1.2 in)
1957
47.3 mm (1.9 in)
1958
34.0 mm (1.3 in)
1959
24.1 mm (0.9 in)
1960
22.8 mm (0.9 in)
1961
42.1 mm (1.7 in)
1962
35.5 mm (1.4 in)
1963
25.1 mm (1.0 in)
1964
15.2 mm (0.6 in)
1965
38.4 mm (1.5 in)
1966
31.2 mm (1.2 in)
1967
38.9 mm (1.5 in)
1968
25.9 mm (1.0 in)
1969
32.6 mm (1.3 in)
1970
33.1 mm (1.3 in)
1971
24.1 mm (0.9 in)
1972
51.3 mm (2.0 in)
1973
48.8 mm (1.9 in)
1974
26.4 mm (1.0 in)
1975
26.2 mm (1.0 in)
1976
19.3 mm (0.8 in)
1977
41.9 mm (1.6 in)
1978
43.7 mm (1.7 in)
1979
37.5 mm (1.5 in)
1980
44.0 mm (1.7 in)
1981
27.4 mm (1.1 in)
1982
56.9 mm (2.2 in)
1983
41.9 mm (1.6 in)
1984
28.0 mm (1.1 in)
1985
47.2 mm (1.9 in)
1986
24.7 mm (1.0 in)
1987
28.7 mm (1.1 in)
1988
26.1 mm (1.0 in)
1989
38.9 mm (1.5 in)
1990
20.1 mm (0.8 in)
1991
47.8 mm (1.9 in)
1992
57.2 mm (2.3 in)
1993
47.0 mm (1.9 in)
1994
48.2 mm (1.9 in)
2020
5.6 mm (0.22 in)
2021
40.1 mm (1.6 in)
2022
56.6 mm (2.2 in)
2023
26.6 mm (1.0 in)
2024
23.9 mm (0.9 in)
2025
38.8 mm (1.5 in)
2026
15.7 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Thompson Welcome Ctr, 1911 to 2026. The record is 127 days in 1916, marked on the chart; the median year is 43 days.
Longest dry spell (CDD) at Thompson Welcome Ctr by year
Year
Longest dry spell (CDD)
1911
43 days
1912
37 days
1913
40 days
1914
31 days
1915
27 days
1916
127 days
1918
22 days
1919
1 day
1920
n/a
1921
17 days
1922
7 days
1923
1 day
1924
1 day
1925
1 day
1926
64 days
1927
51 days
1928
2 days
1929
1 day
1930
48 days
1931
28 days
1932
67 days
1933
43 days
1934
42 days
1935
33 days
1936
39 days
1937
47 days
1938
60 days
1939
41 days
1940
43 days
1941
38 days
1942
57 days
1943
33 days
1944
68 days
1945
60 days
1946
91 days
1947
50 days
1948
40 days
1949
51 days
1950
92 days
1951
32 days
1952
56 days
1953
58 days
1954
50 days
1955
92 days
1956
54 days
1957
28 days
1958
49 days
1959
43 days
1960
43 days
1961
48 days
1962
57 days
1963
45 days
1964
44 days
1965
29 days
1966
61 days
1967
105 days
1968
50 days
1969
30 days
1970
42 days
1971
103 days
1972
104 days
1973
45 days
1974
45 days
1975
40 days
1976
96 days
1977
49 days
1978
34 days
1979
27 days
1980
74 days
1981
28 days
1982
35 days
1983
35 days
1984
34 days
1985
33 days
1986
25 days
1987
27 days
1988
35 days
1989
35 days
1990
33 days
1991
31 days
1992
35 days
1993
35 days
1994
85 days
2020
38 days
2021
44 days
2022
73 days
2023
53 days
2024
53 days
2025
70 days
2026
51 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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Thompson Welcome Ctr falls on 28 April and the median first autumn frost on 20 October, which leaves a median of 175 days between them.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Thompson Welcome Ctr
Measure
Median, all years
Earliest period
Recent period (1935 to 2021)
Recent against earliest
Fitted trend
Last spring frost
28 April
n/a
30 April
n/a
+0.9 days per decade
First autumn frost
20 October
n/a
20 October
n/a
+0.1 days per decade
Growing days
175 days
n/a
173 days
n/a
-0.8 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
56 years, 1912 to 2024
A day with at least 23.5 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 54.3 mm (2.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Thompson Welcome Ctr: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
23.5 mm (0.9 in)
5 years
31.3 mm (1.2 in)
10 years
36.7 mm (1.4 in)
25 years
43.6 mm (1.7 in)
50 years
48.9 mm (1.9 in)
100 years
54.3 mm (2.1 in)
Longer than the 56 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, 56 years of values from 1912 to 2024.
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: 50.8 mm (2.0 in) in 1951; 48.8 mm (1.9 in) in 1973; 44.2 mm (1.7 in) in 1941.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Thompson Welcome Ctr standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Thompson Welcome Ctr 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.