Muncy Valley Threshold Days by Year (USC00366098)

16 fixed thresholds counted per year at Muncy Valley (USC00366098): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Muncy Valley Thresholds

Muncy Valley: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1929 with 50.
Muncy Valley: days with a maximum temperature at or above 90 F (32.2 C) in 26 years, most in 1931 with 24.
Muncy Valley: days with a maximum temperature at or below 0 C (32 F) in 26 years, most in 1917 with 53.
Muncy Valley: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1917 with 178.
16 fixed thresholds have at least one qualifying day at Muncy Valley.

Days at or above 30 C (86 F)

26 years with a qualifying day

Days per year at Muncy Valley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 1929.

Days at or above 30 C (86 F) per year at Muncy Valley
Year	Days	Decade average
1910	25	26.7
1914	31	26.7
1915	15	26.7
1916	30	26.7
1917	15	26.7
1918	39	26.7
1919	32	26.7
1920	11	22.7
1921	33	22.7
1922	7	22.7
1923	32	22.7
1924	20	22.7
1925	17	22.7
1926	9	22.7
1928	25	22.7
1929	50	22.7
1930	40	31.9
1931	41	31.9
1932	32	31.9
1933	31	31.9
1934	34	31.9
1935	19	31.9
1936	39	31.9
1938	18	31.9
1939	33	31.9
1940	21	21

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

First to last qualifying date each year at Muncy Valley
Year	First date	Last date
1910	1910-06-18	1910-08-15
1914	1914-05-21	1914-09-23
1915	1915-04-25	1915-09-16
1916	1916-05-28	1916-09-08
1917	1917-04-01	1917-08-29
1918	1918-05-06	1918-09-04
1919	1919-05-29	1919-10-03
1920	1920-05-28	1920-09-26
1921	1921-04-25	1921-09-04
1922	1922-07-12	1922-09-15
1923	1923-06-02	1923-08-12
1924	1924-06-19	1924-09-01
1925	1925-04-24	1925-09-11
1926	1926-05-04	1926-08-11
1928	1928-05-04	1928-08-31
1929	1929-04-07	1929-09-07
1930	1930-05-06	1930-09-15
1931	1931-05-28	1931-09-23
1932	1932-05-25	1932-09-22
1933	1933-06-03	1933-08-27
1934	1934-05-05	1934-08-14
1935	1935-06-15	1935-08-17
1936	1936-05-08	1936-09-23
1938	1938-06-21	1938-08-18
1939	1939-05-07	1939-09-16
1940	1940-06-04	1940-08-15

Every Fixed Threshold

Fixed thresholds at Muncy Valley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	26	50	1929	21
35 C (95 F): Days	14	7	1923	3
90 F (32.2 C): Days	26	24	1931	5
100 F (37.8 C): Days	4	2	1918	2
0 C (32 F): Ice days (max	26	53	1917	45
0 C (32 F): Frost days (min	26	178	1917	159
-10 C (14 F): Days with min	26	59	1914	59
-20 C (-4 F): Days with min	24	21	1936	4
-30 C (-22 F): Days with min	1	1	1934	1
20 C (68 F): Tropical nights (min	17	4	1910	1
10 mm (0.39 in): Days with 10 mm or more rain	26	49	1919	36
25 mm (0.98 in): Days with 25 mm or more rain	26	16	1940	11
50 mm (1.97 in): Days with 50 mm or more rain	23	5	1932	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1924	1
10 cm (3.9 in): Days with 10 cm or more snowfall	14	5	1926	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1926	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

Data for Muncy Valley 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).

Muncy Valley Threshold Days by Year (USC00366098)

Key Facts for Muncy Valley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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