Dawson Threshold Days by Year (USC00292384)

16 fixed thresholds counted per year at Dawson (USC00292384): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dawson Thresholds

Dawson: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1915 with 20.
Dawson: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1957 with 6.
Dawson: days with 10 cm (3.9 in) or more of snowfall in 37 years, most in 1926 with 5.
Dawson: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1914 with 71.
16 fixed thresholds have at least one qualifying day at Dawson.

Days at or above 30 C (86 F)

23 years with a qualifying day

Days per year at Dawson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 1914.

Days at or above 30 C (86 F) per year at Dawson
Year	Days	Decade average
1913	52	58.4
1914	71	58.4
1915	37	58.4
1916	61	58.4
1917	61	58.4
1918	70	58.4
1919	57	58.4
1920	49	32.6
1921	14	32.6
1922	63	32.6
1923	25	32.6
1924	42	32.6
1925	12	32.6
1926	20	32.6
1927	26	32.6
1928	42	32.6
1933	38	48
1934	57	48
1935	31	48
1939	66	48
1944	66	63.7
1945	62	63.7
1946	63	63.7

For each year, a bar from the first to the last day at Dawson meeting 30 C (86 F).

First to last qualifying date each year at Dawson
Year	First date	Last date
1913	1913-05-12	1913-09-07
1914	1914-05-09	1914-09-20
1915	1915-05-12	1915-08-14
1916	1916-05-30	1916-09-07
1917	1917-06-09	1917-09-03
1918	1918-06-09	1918-09-24
1919	1919-05-19	1919-09-13
1920	1920-05-23	1920-09-26
1921	1921-06-10	1921-09-28
1922	1922-06-08	1922-09-11
1923	1923-06-01	1923-08-04
1924	1924-06-10	1924-09-23
1925	1925-04-21	1925-07-20
1926	1926-06-26	1926-09-08
1927	1927-05-02	1927-07-21
1928	1928-05-01	1928-10-07
1933	1933-06-01	1933-09-08
1934	1934-05-08	1934-09-19
1935	1935-04-15	1935-07-30
1939	1939-05-19	1939-09-11
1944	1944-05-15	1944-09-26
1945	1945-05-26	1945-09-18
1946	1946-06-04	1946-09-27

Every Fixed Threshold

Fixed thresholds at Dawson
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	23	71	1914	63
35 C (95 F): Days	16	24	1918	10
90 F (32.2 C): Days	23	46	1918	46
100 F (37.8 C): Days	4	2	1916	1
0 C (32 F): Ice days (max	23	20	1918	2
0 C (32 F): Frost days (min	22	184	1935	148
-10 C (14 F): Days with min	22	61	1913	29
-20 C (-4 F): Days with min	11	5	1915	1
20 C (68 F): Tropical nights (min	1	1	1934	1
10 mm (0.39 in): Days with 10 mm or more rain	47	20	1915	17
25 mm (0.98 in): Days with 25 mm or more rain	43	6	1957	6
50 mm (1.97 in): Days with 50 mm or more rain	19	2	1955	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	37	5	1926	4
25 cm (9.8 in): Days with 25 cm or more snowfall	11	3	1918	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1928	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

Data for Dawson 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Dawson Threshold Days by Year (USC00292384)

Key Facts for Dawson Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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