Lamoni Threshold Days by Year (USW00014993)

16 fixed thresholds counted per year at Lamoni (USW00014993): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lamoni Thresholds

Lamoni: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1954 with 69.
Lamoni: days with a maximum temperature at or above 90 F (32.2 C) in 14 years, most in 1953 with 48.
Lamoni: days with a maximum temperature at or below 0 C (32 F) in 14 years, most in 1960 with 66.
Lamoni: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1952 with 160.
16 fixed thresholds have at least one qualifying day at Lamoni.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Lamoni with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1954.

Days at or above 30 C (86 F) per year at Lamoni
Year	Days	Decade average
1950	16	49.3
1951	26	49.3
1952	55	49.3
1953	68	49.3
1954	69	49.3
1955	61	49.3
1956	69	49.3
1957	43	49.3
1958	34	49.3
1959	52	49.3
1960	41	39
1961	37	39
2024	41	40.5
2025	40	40.5

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

First to last qualifying date each year at Lamoni
Year	First date	Last date
1950	1950-05-04	1950-09-19
1951	1951-05-31	1951-08-30
1952	1952-05-02	1952-09-30
1953	1953-05-25	1953-10-02
1954	1954-05-23	1954-10-03
1955	1955-06-20	1955-09-18
1956	1956-04-01	1956-10-12
1957	1957-06-05	1957-09-01
1958	1958-06-04	1958-09-24
1959	1959-06-07	1959-09-08
1960	1960-04-22	1960-09-08
1961	1961-04-23	1961-09-10
2024	2024-04-14	2024-10-05
2025	2025-06-02	2025-10-03

Every Fixed Threshold

Fixed thresholds at Lamoni
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	69	1954	40
35 C (95 F): Days	11	24	1954	2
40 C (104 F): Days	1	2	1954	2
90 F (32.2 C): Days	14	48	1953	16
100 F (37.8 C): Days	5	11	1954	2
0 C (32 F): Ice days (max	14	66	1960	44
0 C (32 F): Frost days (min	14	160	1952	114
-10 C (14 F): Days with min	14	66	1950	47
-20 C (-4 F): Days with min	13	15	1951	9
20 C (68 F): Tropical nights (min	14	39	2025	39
25 C (77 F): Days with min	1	2	2025	2
10 mm (0.39 in): Days with 10 mm or more rain	14	37	1951	29
25 mm (0.98 in): Days with 25 mm or more rain	14	13	1959	7
50 mm (1.97 in): Days with 50 mm or more rain	11	3	1950	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1957	1
10 cm (3.9 in): Days with 10 cm or more snowfall	11	3	1952	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

Data for Lamoni 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).

Lamoni Threshold Days by Year (USW00014993)

Key Facts for Lamoni Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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