Jaroso Weather Records (USC00054346)

Record envelope, standing records and threshold days for Jaroso (USC00054346), Colorado, United States, with 57 years of record.

Key Facts for Jaroso

Jaroso (USC00054346) is a weather station in Colorado, United States at 37.00 latitude and -105.63 longitude, 2,309 m (7,575 ft) above sea level.
The station reports from 1893 to 1949, 57 years of record.
1,464 records set at Jaroso still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Colorado, United States, 37.00 latitude, -105.63 longitude.
Elevation: 2,309 m (7,575 ft).
Period of record: 1893 to 1949, 57 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Jaroso. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Jaroso, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	19.4 C (66.9 F)	-37.8 C (-36.0 F)	n/a	n/a
Feb	15.6 C (60.1 F)	-36.7 C (-34.1 F)	n/a	n/a
Mar	21.1 C (70.0 F)	-26.1 C (-15.0 F)	n/a	n/a
Apr	26.1 C (79.0 F)	-23.3 C (-9.9 F)	n/a	n/a
May	28.9 C (84.0 F)	-7.2 C (19.0 F)	n/a	n/a
Jun	33.9 C (93.0 F)	-2.8 C (27.0 F)	n/a	n/a
Jul	33.9 C (93.0 F)	2.2 C (36.0 F)	n/a	n/a
Aug	32.8 C (91.0 F)	-0.6 C (30.9 F)	n/a	n/a
Sep	32.2 C (90.0 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	27.8 C (82.0 F)	-13.3 C (8.1 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-23.9 C (-11.0 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-33.3 C (-27.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Jaroso still stand. 1940 holds the most, with 187.

Wettest Day of Each Month

Aug: 38.1 mm (1.5 in)

The wettest day on record for each calendar month at Jaroso. The most was 38.1 mm (1.5 in) on 29 August 1895.

Record daily precipitation for each month at Jaroso
Month	Record daily precipitation (mm)	Date
Jan	15.2 mm (0.6 in)	26 January 1944
Feb	25.4 mm (1.0 in)	22 February 1894
Mar	29.2 mm (1.1 in)	5 March 1946
Apr	29.7 mm (1.2 in)	23 April 1942
May	27.9 mm (1.1 in)	21 May 1895
Jun	11.4 mm (0.4 in)	29 June 1943
Jul	25.4 mm (1.0 in)	10 July 1895
Aug	38.1 mm (1.5 in)	29 August 1895
Sep	21.8 mm (0.9 in)	29 September 1941
Oct	23.1 mm (0.9 in)	14 October 1947
Nov	21.6 mm (0.9 in)	19 November 1940
Dec	27.9 mm (1.1 in)	31 December 1947

Period of Record Coverage

1939 to 1949

11 years of record at Jaroso, 1939 to 1949. 3 years have data for under 90 percent of days and are left out of rankings: 1939, 1947, 1949.

Days with data per year at Jaroso
Year	Days with data	Share of year	Complete
1939	164	45%	No
1940	359	98%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	364	100%	Yes
1946	364	100%	Yes
1947	309	85%	No
1948	351	96%	Yes
1949	36	10%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1893 to 1949

Yearly extremes at Jaroso: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.9 C (93.0 F)	1940	32.8 C (91.0 F)	11
Coldest night (TNn)	-37.8 C (-36.0 F)	1948	-32.2 C (-26.0 F)	11
Wettest day (Rx1day)	38.1 mm (1.5 in)	1895	22.4 mm (0.9 in)	14
Wettest five days (Rx5day)	56.0 mm (2.2 in)	1895	31.3 mm (1.2 in)	14
Longest dry spell (CDD)	69 days	1945	41 days	14

Hottest day (TXx)

The hottest day of the year at Jaroso, 1893 to 1949. The record is 33.9 C (93.0 F) in 1940, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Jaroso by year
Year	Hottest day (TXx)
1893	n/a
1894	n/a
1895	n/a
1939	32.8 C (91.0 F)
1940	33.9 C (93.0 F)
1941	31.1 C (88.0 F)
1942	33.3 C (91.9 F)
1943	32.8 C (91.0 F)
1944	32.2 C (90.0 F)
1945	32.8 C (91.0 F)
1946	33.9 C (93.0 F)
1947	33.9 C (93.0 F)
1948	32.2 C (90.0 F)
1949	10.0 C (50.0 F)

Coldest night (TNn)

The coldest night of the year at Jaroso, 1893 to 1949. The record is -37.8 C (-36.0 F) in 1948, marked on the chart; the median year is -32.2 C (-26.0 F).

Coldest night (TNn) at Jaroso by year
Year	Coldest night (TNn)
1893	n/a
1894	n/a
1895	n/a
1939	-24.4 C (-11.9 F)
1940	-33.3 C (-27.9 F)
1941	-37.2 C (-35.0 F)
1942	-32.2 C (-26.0 F)
1943	-30.6 C (-23.1 F)
1944	-33.3 C (-27.9 F)
1945	-30.0 C (-22.0 F)
1946	-27.8 C (-18.0 F)
1947	-26.7 C (-16.1 F)
1948	-37.8 C (-36.0 F)
1949	-35.6 C (-32.1 F)

Wettest day (Rx1day)

The wettest day of the year at Jaroso, 1893 to 1949. The record is 38.1 mm (1.5 in) in 1895, marked on the chart; the median year is 22.4 mm (0.9 in).

Wettest day (Rx1day) at Jaroso by year
Year	Wettest day (Rx1day)
1893	20.3 mm (0.8 in)
1894	25.4 mm (1.0 in)
1895	38.1 mm (1.5 in)
1939	12.7 mm (0.5 in)
1940	21.6 mm (0.9 in)
1941	21.8 mm (0.9 in)
1942	29.7 mm (1.2 in)
1943	20.6 mm (0.8 in)
1944	27.9 mm (1.1 in)
1945	19.1 mm (0.8 in)
1946	29.2 mm (1.1 in)
1947	27.9 mm (1.1 in)
1948	22.9 mm (0.9 in)
1949	10.2 mm (0.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Jaroso, 1893 to 1949. The record is 56.0 mm (2.2 in) in 1895, marked on the chart; the median year is 31.3 mm (1.2 in).

Wettest five days (Rx5day) at Jaroso by year
Year	Wettest five days (Rx5day)
1893	35.6 mm (1.4 in)
1894	33.0 mm (1.3 in)
1895	56.0 mm (2.2 in)
1939	18.3 mm (0.7 in)
1940	36.4 mm (1.4 in)
1941	29.8 mm (1.2 in)
1942	49.5 mm (1.9 in)
1943	44.2 mm (1.7 in)
1944	32.7 mm (1.3 in)
1945	22.1 mm (0.9 in)
1946	29.2 mm (1.1 in)
1947	23.1 mm (0.9 in)
1948	27.9 mm (1.1 in)
1949	10.2 mm (0.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Jaroso, 1893 to 1949. The record is 69 days in 1945, marked on the chart; the median year is 41 days.

Longest dry spell (CDD) at Jaroso by year
Year	Longest dry spell (CDD)
1893	42 days
1894	50 days
1895	50 days
1939	41 days
1940	24 days
1941	34 days
1942	36 days
1943	25 days
1944	43 days
1945	69 days
1946	58 days
1947	29 days
1948	40 days
1949	10 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Jaroso standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jaroso 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).