Reva Threshold Days by Year (USC00397150)

21 fixed thresholds counted per year at Reva (USC00397150): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Reva Thresholds

Reva: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1915 with 25.
Reva: days with a maximum temperature at or above 30 C (86 F) in 21 years, most in 1936 with 79.
Reva: days with a maximum temperature at or above 90 F (32.2 C) in 21 years, most in 1936 with 60.
Reva: days with a maximum temperature at or below 0 C (32 F) in 21 years, most in 1937 with 89.
21 fixed thresholds have at least one qualifying day at Reva.

Days at or above 30 C (86 F)

21 years with a qualifying day

Days per year at Reva with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1936.

Days at or above 30 C (86 F) per year at Reva
Year	Days	Decade average
1912	25	37.8
1913	44	37.8
1914	38	37.8
1915	5	37.8
1916	36	37.8
1917	46	37.8
1918	38	37.8
1919	70	37.8
1920	44	39.6
1921	59	39.6
1923	28	39.6
1928	26	39.6
1929	41	39.6
1932	32	59.3
1933	63	59.3
1934	62	59.3
1935	55	59.3
1936	79	59.3
1937	62	59.3
1938	57	59.3
1939	64	59.3

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

First to last qualifying date each year at Reva
Year	First date	Last date
1912	1912-06-22	1912-09-04
1913	1913-04-29	1913-09-09
1914	1914-06-02	1914-10-01
1915	1915-05-10	1915-09-01
1916	1916-05-09	1916-09-30
1917	1917-05-15	1917-09-23
1918	1918-05-04	1918-09-23
1919	1919-05-25	1919-09-16
1920	1920-06-08	1920-10-09
1921	1921-06-11	1921-09-26
1923	1923-04-18	1923-09-05
1928	1928-05-07	1928-09-06
1929	1929-05-24	1929-09-21
1932	1932-05-13	1932-09-07
1933	1933-05-31	1933-09-18
1934	1934-05-07	1934-10-07
1935	1935-06-29	1935-10-15
1936	1936-05-14	1936-09-23
1937	1937-05-28	1937-10-03
1938	1938-04-30	1938-10-03
1939	1939-04-30	1939-09-21

Every Fixed Threshold

Fixed thresholds at Reva
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	21	79	1936	64
35 C (95 F): Days	20	41	1936	17
40 C (104 F): Days	12	13	1936	1
45 C (113 F): Days	1	1	1936	1
90 F (32.2 C): Days	21	60	1936	46
100 F (37.8 C): Days	17	28	1936	6
110 F (43.3 C): Days	1	2	1936	2
0 C (32 F): Ice days (max	21	89	1937	42
0 C (32 F): Frost days (min	21	209	1917	168
-10 C (14 F): Days with min	21	89	1932	64
-20 C (-4 F): Days with min	21	55	1916	15
-30 C (-22 F): Days with min	20	17	1936	4
-40 C (-40 F): Days with min	2	2	1916	2
20 C (68 F): Tropical nights (min	17	20	1936	4
25 C (77 F): Days with min	2	2	1936	2
10 mm (0.39 in): Days with 10 mm or more rain	23	25	1915	14
25 mm (0.98 in): Days with 25 mm or more rain	19	7	1920	1
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1919	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1928	1
10 cm (3.9 in): Days with 10 cm or more snowfall	14	5	1919	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1913	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

Data for Reva 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).

Reva Threshold Days by Year (USC00397150)

Key Facts for Reva Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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