Wadsworth 4 N Threshold Days by Year (USC00268838)

13 fixed thresholds counted per year at Wadsworth 4 N (USC00268838): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wadsworth 4 N Thresholds

Wadsworth 4 N: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1997 with 9.
Wadsworth 4 N: days with a maximum temperature at or above 30 C (86 F) in 21 years, most in 1996 with 96.
Wadsworth 4 N: days with a maximum temperature at or above 35 C (95 F) in 21 years, most in 1994 with 43.
Wadsworth 4 N: days with a maximum temperature at or above 90 F (32.2 C) in 21 years, most in 1996 with 76.
13 fixed thresholds have at least one qualifying day at Wadsworth 4 N.

Days at or above 30 C (86 F)

21 years with a qualifying day

Days per year at Wadsworth 4 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 96 in 1996.

Days at or above 30 C (86 F) per year at Wadsworth 4 N
Year	Days	Decade average
1975	71	69.4
1976	53	69.4
1977	84	69.4
1978	63	69.4
1979	76	69.4
1982	75	78.8
1983	73	78.8
1984	92	78.8
1985	73	78.8
1986	84	78.8
1987	76	78.8
1990	74	81.9
1991	79	81.9
1992	81	81.9
1993	66	81.9
1994	94	81.9
1995	80	81.9
1996	96	81.9
1997	85	81.9
1998	77	81.9
1999	87	81.9

For each year, a bar from the first to the last day at Wadsworth 4 N meeting 30 C (86 F).

First to last qualifying date each year at Wadsworth 4 N
Year	First date	Last date
1975	1975-05-14	1975-10-04
1976	1976-05-13	1976-09-04
1977	1977-05-30	1977-09-13
1978	1978-05-13	1978-10-08
1979	1979-05-20	1979-10-05
1982	1982-05-02	1982-09-23
1983	1983-05-23	1983-09-19
1984	1984-05-14	1984-09-19
1985	1985-05-02	1985-09-01
1986	1986-05-19	1986-09-08
1987	1987-05-06	1987-10-04
1990	1990-05-05	1990-10-04
1991	1991-06-02	1991-10-11
1992	1992-05-04	1992-10-12
1993	1993-05-10	1993-10-03
1994	1994-05-11	1994-09-28
1995	1995-06-10	1995-09-19
1996	1996-05-11	1996-10-10
1997	1997-05-09	1997-10-01
1998	1998-06-18	1998-09-17
1999	1999-05-23	1999-10-13

Every Fixed Threshold

Fixed thresholds at Wadsworth 4 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	21	96	1996	87
35 C (95 F): Days	21	43	1994	16
40 C (104 F): Days	4	1	1983	1
90 F (32.2 C): Days	21	76	1996	50
100 F (37.8 C): Days	19	10	1996	1
0 C (32 F): Ice days (max	18	18	1990	6
0 C (32 F): Frost days (min	19	183	1975	145
-10 C (14 F): Days with min	19	61	1976	39
-20 C (-4 F): Days with min	11	14	1990	3
-30 C (-22 F): Days with min	1	3	1990	3
20 C (68 F): Tropical nights (min	12	2	1990	1
10 mm (0.39 in): Days with 10 mm or more rain	22	9	1997	1
25 mm (0.98 in): Days with 25 mm or more rain	4	1	1986	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

Data for Wadsworth 4 N 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).

Wadsworth 4 N Threshold Days by Year (USC00268838)

Key Facts for Wadsworth 4 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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