Roswell Weather Records (USC00297604)

Record envelope, standing records and threshold days for Roswell (USC00297604), New Mexico, United States, with 58 years of record.

Key Facts for Roswell

Roswell (USC00297604) is a weather station in New Mexico, United States at 33.32 latitude and -104.43 longitude, 1,089 m (3,573 ft) above sea level.
The station reports from 1893 to 1950, 58 years of record.
1,464 records set at Roswell still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: New Mexico, United States, 33.32 latitude, -104.43 longitude.
Elevation: 1,089 m (3,573 ft).
Period of record: 1893 to 1950, 58 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 Roswell. 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 Roswell, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.1 C (88.0 F)	-27.8 C (-18.0 F)	n/a	n/a
Feb	31.1 C (88.0 F)	-25.6 C (-14.1 F)	n/a	n/a
Mar	37.2 C (99.0 F)	-19.4 C (-2.9 F)	n/a	n/a
Apr	37.8 C (100.0 F)	-10.0 C (14.0 F)	n/a	n/a
May	41.7 C (107.1 F)	0.6 C (33.1 F)	n/a	n/a
Jun	43.3 C (109.9 F)	3.3 C (37.9 F)	n/a	n/a
Jul	42.2 C (108.0 F)	10.6 C (51.1 F)	n/a	n/a
Aug	42.2 C (108.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	40.0 C (104.0 F)	1.1 C (34.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-7.2 C (19.0 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-17.2 C (1.0 F)	n/a	n/a
Dec	27.8 C (82.0 F)	-19.4 C (-2.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Roswell still stand. 1896 holds the most, with 107.

Standing records at Roswell by the year they were set
Year set	Standing records
1893	22
1894	52
1895	75
1896	107
1897	57
1898	77
1899	75
1900	61
1901	57
1902	43
1903	45
1904	59
1918	70
1919	41
1920	57
1921	72
1922	71
1940	37
1941	38
1942	47
1943	53
1944	36
1945	46
1946	23
1947	49
1948	65
1949	26
1950	3

Wettest Day of Each Month

Nov: 143.5 mm (5.6 in)

The wettest day on record for each calendar month at Roswell. The most was 143.5 mm (5.6 in) on 1 November 1901.

Record daily precipitation for each month at Roswell
Month	Record daily precipitation (mm)	Date
Jan	30.5 mm (1.2 in)	13 January 1902
Feb	25.1 mm (1.0 in)	5 February 1948
Mar	59.9 mm (2.4 in)	21 March 1919
Apr	38.9 mm (1.5 in)	23 April 1942
May	74.7 mm (2.9 in)	22 May 1941
Jun	61.5 mm (2.4 in)	23 June 1898
Jul	114.8 mm (4.5 in)	4 July 1898
Aug	51.8 mm (2.0 in)	31 August 1942
Sep	88.4 mm (3.5 in)	10 September 1899
Oct	78.7 mm (3.1 in)	17 October 1900
Nov	143.5 mm (5.6 in)	1 November 1901
Dec	31.5 mm (1.2 in)	20 December 1942

Period of Record Coverage

1893 to 1950

28 years of record at Roswell, 1893 to 1950. 10 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1895, 1903, 1904, 1918, 1946, 1947 and others.

Days with data per year at Roswell
Year	Days with data	Share of year	Complete
1893	85	23%	No
1894	211	58%	No
1895	321	88%	No
1896	342	93%	Yes
1897	341	93%	Yes
1898	333	91%	Yes
1899	364	100%	Yes
1900	364	100%	Yes
1901	354	97%	Yes
1902	358	98%	Yes
1903	271	74%	No
1904	320	87%	No
1918	243	67%	No
1919	365	100%	Yes
1920	366	100%	Yes
1921	365	100%	Yes
1922	365	100%	Yes
1940	338	92%	Yes
1941	365	100%	Yes
1942	361	99%	Yes
1943	362	99%	Yes
1944	365	100%	Yes
1945	333	91%	Yes
1946	292	80%	No
1947	326	89%	No
1948	341	93%	Yes
1949	161	44%	No
1950	34	9%	No

Latest Records

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

Climate Trend

14 complete years, 1896 to 1948

One stripe for each of 14 complete years at Roswell, 1896 to 1948. Blue stripes are years cooler than the station's own mean of 15.2 C (59.4 F); red stripes are warmer. The coolest year was 1919, at 14.2 C (57.6 F), and the warmest was 1896, at 16.4 C (61.4 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Roswell as warming stripes, 1896 to 1948
Year	Annual mean temperature	Difference from the station mean
1896	16.4 C	+1.14 C
1899	14.9 C	-0.36 C
1900	15.7 C	+0.52 C
1901	15.3 C	+0.04 C
1902	15.3 C	+0.13 C
1919	14.2 C	-1.00 C
1920	14.6 C	-0.64 C
1921	16.0 C	+0.77 C
1922	15.4 C	+0.15 C
1941	14.3 C	-0.88 C
1942	14.7 C	-0.52 C
1943	16.1 C	+0.87 C
1944	15.2 C	-0.02 C
1948	15.0 C	-0.20 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1893 to 1950

Yearly extremes at Roswell: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1896	39.7 C (103.5 F)	28
Coldest night (TNn)	-27.8 C (-18.0 F)	1949	-16.4 C (2.5 F)	28
Wettest day (Rx1day)	143.5 mm (5.6 in)	1901	40.9 mm (1.6 in)	28
Wettest five days (Rx5day)	185.0 mm (7.3 in)	1941	55.6 mm (2.2 in)	28
Longest dry spell (CDD)	129 days	1943	58 days	28

Hottest day (TXx)

The hottest day of the year at Roswell, 1893 to 1950. The record is 43.3 C (109.9 F) in 1896, marked on the chart; the median year is 39.7 C (103.5 F).

Hottest day (TXx) at Roswell by year
Year	Hottest day (TXx)
1893	33.3 C (91.9 F)
1894	38.3 C (100.9 F)
1895	41.1 C (106.0 F)
1896	43.3 C (109.9 F)
1897	40.0 C (104.0 F)
1898	37.8 C (100.0 F)
1899	39.4 C (102.9 F)
1900	39.4 C (102.9 F)
1901	38.3 C (100.9 F)
1902	41.7 C (107.1 F)
1903	36.1 C (97.0 F)
1904	36.7 C (98.1 F)
1918	42.8 C (109.0 F)
1919	38.9 C (102.0 F)
1920	40.0 C (104.0 F)
1921	42.2 C (108.0 F)
1922	42.2 C (108.0 F)
1940	40.0 C (104.0 F)
1941	36.7 C (98.1 F)
1942	40.6 C (105.1 F)
1943	40.0 C (104.0 F)
1944	41.1 C (106.0 F)
1945	40.6 C (105.1 F)
1946	40.0 C (104.0 F)
1947	37.8 C (100.0 F)
1948	39.4 C (102.9 F)
1949	36.1 C (97.0 F)
1950	27.2 C (81.0 F)

Coldest night (TNn)

The coldest night of the year at Roswell, 1893 to 1950. The record is -27.8 C (-18.0 F) in 1949, marked on the chart; the median year is -16.4 C (2.5 F).

Coldest night (TNn) at Roswell by year
Year	Coldest night (TNn)
1893	-12.2 C (10.0 F)
1894	-11.1 C (12.0 F)
1895	-25.6 C (-14.1 F)
1896	-12.2 C (10.0 F)
1897	-20.0 C (-4.0 F)
1898	-16.7 C (1.9 F)
1899	-21.1 C (-6.0 F)
1900	-13.9 C (7.0 F)
1901	-19.4 C (-2.9 F)
1902	-12.2 C (10.0 F)
1903	-21.7 C (-7.1 F)
1904	-16.1 C (3.0 F)
1918	-19.4 C (-2.9 F)
1919	-19.4 C (-2.9 F)
1920	-19.4 C (-2.9 F)
1921	-14.4 C (6.1 F)
1922	-17.2 C (1.0 F)
1940	-11.7 C (10.9 F)
1941	-11.1 C (12.0 F)
1942	-15.6 C (3.9 F)
1943	-16.1 C (3.0 F)
1944	-13.3 C (8.1 F)
1945	-13.3 C (8.1 F)
1946	-17.8 C (0.0 F)
1947	-22.8 C (-9.0 F)
1948	-23.3 C (-9.9 F)
1949	-27.8 C (-18.0 F)
1950	-7.8 C (18.0 F)

Wettest day (Rx1day)

The wettest day of the year at Roswell, 1893 to 1950. The record is 143.5 mm (5.6 in) in 1901, marked on the chart; the median year is 40.9 mm (1.6 in).

Wettest day (Rx1day) at Roswell by year
Year	Wettest day (Rx1day)
1893	18.8 mm (0.7 in)
1894	24.4 mm (1.0 in)
1895	45.7 mm (1.8 in)
1896	62.0 mm (2.4 in)
1897	34.3 mm (1.4 in)
1898	114.8 mm (4.5 in)
1899	88.4 mm (3.5 in)
1900	78.7 mm (3.1 in)
1901	143.5 mm (5.6 in)
1902	50.0 mm (2.0 in)
1903	44.5 mm (1.8 in)
1904	45.7 mm (1.8 in)
1918	19.8 mm (0.8 in)
1919	63.0 mm (2.5 in)
1920	25.9 mm (1.0 in)
1921	46.7 mm (1.8 in)
1922	17.3 mm (0.7 in)
1940	57.7 mm (2.3 in)
1941	74.7 mm (2.9 in)
1942	51.8 mm (2.0 in)
1943	36.1 mm (1.4 in)
1944	36.6 mm (1.4 in)
1945	36.6 mm (1.4 in)
1946	21.8 mm (0.9 in)
1947	35.6 mm (1.4 in)
1948	37.3 mm (1.5 in)
1949	21.1 mm (0.8 in)
1950	1.0 mm (0.04 in)

Wettest five days (Rx5day)

The wettest five days of the year at Roswell, 1893 to 1950. The record is 185.0 mm (7.3 in) in 1941, marked on the chart; the median year is 55.6 mm (2.2 in).

Wettest five days (Rx5day) at Roswell by year
Year	Wettest five days (Rx5day)
1893	18.8 mm (0.7 in)
1894	35.3 mm (1.4 in)
1895	89.1 mm (3.5 in)
1896	125.5 mm (4.9 in)
1897	45.8 mm (1.8 in)
1898	115.6 mm (4.6 in)
1899	96.6 mm (3.8 in)
1900	94.2 mm (3.7 in)
1901	168.9 mm (6.6 in)
1902	96.3 mm (3.8 in)
1903	52.1 mm (2.1 in)
1904	46.5 mm (1.8 in)
1918	35.3 mm (1.4 in)
1919	142.6 mm (5.6 in)
1920	46.5 mm (1.8 in)
1921	107.7 mm (4.2 in)
1922	48.1 mm (1.9 in)
1940	59.0 mm (2.3 in)
1941	185.0 mm (7.3 in)
1942	62.7 mm (2.5 in)
1943	50.3 mm (2.0 in)
1944	51.6 mm (2.0 in)
1945	67.3 mm (2.6 in)
1946	30.4 mm (1.2 in)
1947	38.4 mm (1.5 in)
1948	68.5 mm (2.7 in)
1949	33.0 mm (1.3 in)
1950	1.0 mm (0.04 in)

Longest dry spell (CDD)

The longest dry spell of the year at Roswell, 1893 to 1950. The record is 129 days in 1943, marked on the chart; the median year is 58 days.

Longest dry spell (CDD) at Roswell by year
Year	Longest dry spell (CDD)
1893	30 days
1894	58 days
1895	66 days
1896	73 days
1897	36 days
1898	59 days
1899	48 days
1900	62 days
1901	62 days
1902	63 days
1903	62 days
1904	39 days
1918	29 days
1919	47 days
1920	62 days
1921	98 days
1922	57 days
1940	56 days
1941	28 days
1942	53 days
1943	129 days
1944	70 days
1945	59 days
1946	33 days
1947	35 days
1948	60 days
1949	33 days
1950	25 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 Roswell standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Roswell 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).