White River Junction Threshold Days by Year (USC00439691)

17 fixed thresholds counted per year at White River Junction (USC00439691): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for White River Junction Thresholds

White River Junction: days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1943 with 40.
White River Junction: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1954 with 10.
White River Junction: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1952 with 3.
White River Junction: days with 10 cm (3.9 in) or more of snowfall in 17 years, most in 1947 with 9.
17 fixed thresholds have at least one qualifying day at White River Junction.

Days at or above 30 C (86 F)

11 years with a qualifying day

Days per year at White River Junction with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1939.

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

First to last qualifying date each year at White River Junction
Year	First date	Last date
1932	1932-05-16	1932-09-01
1933	1933-06-03	1933-09-27
1938	1938-04-28	1938-08-21
1939	1939-05-25	1939-09-16
1940	1940-06-01	1940-08-19
1941	1941-04-19	1941-09-22
1943	1943-05-18	1943-09-08
1944	1944-05-05	1944-09-03
1945	1945-03-30	1945-09-26
1946	1946-05-26	1946-09-21
1947	1947-05-25	1947-10-19

Every Fixed Threshold

Fixed thresholds at White River Junction
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	11	62	1939	55
35 C (95 F): Days	10	12	1941	5
90 F (32.2 C): Days	11	33	1947	33
100 F (37.8 C): Days	1	1	1944	1
0 C (32 F): Ice days (max	11	61	1940	48
0 C (32 F): Frost days (min	15	192	1947	192
-10 C (14 F): Days with min	15	88	1947	88
-20 C (-4 F): Days with min	15	32	1943	29
-30 C (-22 F): Days with min	6	3	1933	2
20 C (68 F): Tropical nights (min	13	7	1938	2
10 mm (0.39 in): Days with 10 mm or more rain	45	40	1943	34
25 mm (0.98 in): Days with 25 mm or more rain	45	10	1954	6
50 mm (1.97 in): Days with 50 mm or more rain	24	3	1952	1
100 mm (3.94 in): Days with 100 mm or more rain	1	0	n/a	1
10 cm (3.9 in): Days with 10 cm or more snowfall	17	9	1947	4
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	1933	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1933	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.

Download the Data

Data for White River Junction 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).

White River Junction Threshold Days by Year (USC00439691)

Key Facts for White River Junction Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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