Montezuma 2 NW Threshold Days by Year (USC00095979)

15 fixed thresholds counted per year at Montezuma 2 NW (USC00095979): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Montezuma 2 NW Thresholds

Montezuma 2 NW: days with 10 mm (0.39 in) or more of precipitation in 115 years, most in 1947 with 55.
Montezuma 2 NW: days with 25 mm (0.98 in) or more of precipitation in 115 years, most in 1964 with 28.
Montezuma 2 NW: days with 50 mm (1.97 in) or more of precipitation in 108 years, most in 2021 with 11.
Montezuma 2 NW: days with 100 mm (3.94 in) or more of precipitation in 27 years, most in 2005 with 3.
15 fixed thresholds have at least one qualifying day at Montezuma 2 NW.

Days at or above 30 C (86 F)

15 years with a qualifying day

Days per year at Montezuma 2 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 161 in 1941.

Days at or above 30 C (86 F) per year at Montezuma 2 NW
Year	Days	Decade average
1940	112	131.1
1941	161	131.1
1942	160	131.1
1943	124	131.1
1944	123	131.1
1945	133	131.1
1946	113	131.1
1947	122	131.1
1948	128	131.1
1949	135	131.1
1950	132	130.4
1951	125	130.4
1952	127	130.4
1953	125	130.4
1954	143	130.4

For each year, a bar from the first to the last day at Montezuma 2 NW meeting 30 C (86 F).

First to last qualifying date each year at Montezuma 2 NW
Year	First date	Last date
1940	1940-04-01	1940-09-24
1941	1941-04-18	1941-10-27
1942	1942-04-05	1942-10-21
1943	1943-04-08	1943-11-01
1944	1944-05-11	1944-09-29
1945	1945-03-06	1945-10-13
1946	1946-04-07	1946-10-10
1947	1947-04-05	1947-10-09
1948	1948-03-21	1948-09-23
1949	1949-03-27	1949-10-26
1950	1950-04-24	1950-11-01
1951	1951-04-27	1951-10-08
1952	1952-04-22	1952-10-06
1953	1953-04-24	1953-10-03
1954	1954-03-25	1954-10-27

Every Fixed Threshold

Fixed thresholds at Montezuma 2 NW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	15	161	1941	143
35 C (95 F): Days	15	73	1954	73
40 C (104 F): Days	2	2	1954	2
90 F (32.2 C): Days	15	115	1941	113
100 F (37.8 C): Days	10	13	1954	13
0 C (32 F): Ice days (max	3	1	1940	1
0 C (32 F): Frost days (min	13	51	1943	32
-10 C (14 F): Days with min	5	4	1940	2
20 C (68 F): Tropical nights (min	13	120	1941	114
25 C (77 F): Days with min	5	14	1940	7
10 mm (0.39 in): Days with 10 mm or more rain	115	55	1947	25
25 mm (0.98 in): Days with 25 mm or more rain	115	28	1964	17
50 mm (1.97 in): Days with 50 mm or more rain	108	11	2021	8
100 mm (3.94 in): Days with 100 mm or more rain	27	3	2005	1
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1943	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

Data for Montezuma 2 NW 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).

Montezuma 2 NW Threshold Days by Year (USC00095979)

Key Facts for Montezuma 2 NW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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