Record envelope, standing records and threshold days for Roswell Muni AP (USW00023043), New Mexico, United States, with 80 years of record.
Key Facts for Roswell Muni AP
Roswell Muni AP (USW00023043) is a weather station in New Mexico, United States at 33.40 latitude and -104.53 longitude, 1,106 m (3,629 ft) above sea level.
The station reports from 1893 to 1972, 80 years of record.
1,464 records set at Roswell Muni AP still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Roswell Muni AP set a daily record low maximum temperature of 0.0 C (32.0 F) on 6 December 1972.
About the Station
Location: New Mexico, United States, 33.40 latitude, -104.53 longitude.
Elevation: 1,106 m (3,629 ft).
Period of record: 1893 to 1972, 80 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Roswell Muni AP. 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 Muni AP, 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)
-31.1 C (-24.0 F)
n/a
n/a
Feb
31.1 C (88.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
38.3 C (100.9 F)
-8.3 C (17.1 F)
n/a
n/a
May
41.7 C (107.1 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
43.3 C (109.9 F)
4.4 C (39.9 F)
n/a
n/a
Jul
43.3 C (109.9 F)
11.1 C (52.0 F)
n/a
n/a
Aug
41.7 C (107.1 F)
8.9 C (48.0 F)
n/a
n/a
Sep
39.4 C (102.9 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
34.4 C (93.9 F)
-21.1 C (-6.0 F)
n/a
n/a
Dec
28.9 C (84.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Roswell Muni AP still stand. 1894 holds the most, with 39.
Standing records at Roswell Muni AP by the year they were set
Year set
Standing records
1893
8
1894
39
1895
33
1896
39
1897
24
1898
28
1899
29
1900
13
1901
17
1902
13
1903
15
1904
22
1905
22
1906
26
1907
23
1908
18
1909
21
1910
12
1911
36
1912
14
1913
24
1914
11
1915
12
1916
15
1917
16
1918
23
1919
17
1920
19
1921
14
1922
20
1923
21
1924
9
1925
23
1926
9
1927
13
1928
19
1929
11
1930
12
1931
20
1932
9
1933
13
1934
20
1935
15
1936
12
1937
8
1938
15
1939
13
1940
19
1941
7
1942
6
1943
16
1944
9
1945
20
1946
14
1947
19
1948
14
1949
12
1950
14
1951
28
1952
20
1953
21
1954
11
1955
9
1956
12
1957
18
1958
24
1959
20
1960
23
1961
29
1962
22
1963
19
1964
25
1965
22
1966
25
1967
28
1968
23
1969
23
1970
13
1971
16
1972
18
All-Time Record Progression
5 new records
5 all-time records were set at Roswell Muni AP between 8 February 1933 and 12 January 1963. Each dot is a new record.
When Roswell Muni AP set new all-time records
Date
Kind
Detail
1933-02-08
Record low maximum temperature
Record low maximum temperature -12.2 C (10.0 F)
1933-02-08
Record low minimum temperature
Record low minimum temperature -31.1 C (-24.0 F)
1957-06-30
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
1960-12-08
Record daily snowfall
Record daily snowfall 25.4 cm (10.0 in)
1963-01-12
Record low maximum temperature
Record low maximum temperature -15.0 C (5.0 F)
Wettest Day of Each Month
Nov: 143.5 mm (5.6 in)
The wettest day on record for each calendar month at Roswell Muni AP. The most was 143.5 mm (5.6 in) on 1 November 1901.
Record daily precipitation for each month at Roswell Muni AP
Month
Record daily precipitation (mm)
Date
Jan
30.5 mm (1.2 in)
13 January 1902
Feb
24.4 mm (1.0 in)
22 February 1923
Mar
75.4 mm (3.0 in)
21 March 1919
Apr
88.4 mm (3.5 in)
16 April 1915
May
77.2 mm (3.0 in)
29 May 1895
Jun
65.0 mm (2.6 in)
28 June 1940
Jul
114.8 mm (4.5 in)
4 July 1898
Aug
116.1 mm (4.6 in)
9 August 1916
Sep
88.4 mm (3.5 in)
8 September 1899
Oct
78.7 mm (3.1 in)
17 October 1900
Nov
143.5 mm (5.6 in)
1 November 1901
Dec
48.8 mm (1.9 in)
9 December 1943
Period of Record Coverage
1893 to 1972
Complete yearUnder 90 percent of days
80 years of record at Roswell Muni AP, 1893 to 1972. 4 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1903, 1913.
Cooler than the station meanWarmer than the station mean
One stripe for each of 72 complete years at Roswell Muni AP, 1895 to 1972. Blue stripes are years cooler than the station's own mean of 15.3 C (59.5 F); red stripes are warmer. The coolest year was 1912, at 13.9 C (57.0 F), and the warmest was 1934, at 16.9 C (62.5 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Roswell Muni AP as warming stripes, 1895 to 1972
Year
Annual mean temperature
Difference from the station mean
1895
14.6 C
-0.66 C
1896
16.4 C
+1.09 C
1897
14.4 C
-0.88 C
1898
14.0 C
-1.22 C
1899
14.8 C
-0.43 C
1900
15.3 C
+0.00 C
1901
15.1 C
-0.12 C
1902
15.4 C
+0.17 C
1906
14.6 C
-0.65 C
1908
14.8 C
-0.50 C
1909
14.8 C
-0.43 C
1910
15.8 C
+0.57 C
1911
15.3 C
+0.01 C
1912
13.9 C
-1.39 C
1914
14.9 C
-0.32 C
1915
14.3 C
-0.97 C
1917
14.9 C
-0.41 C
1918
14.5 C
-0.80 C
1919
14.4 C
-0.88 C
1920
14.5 C
-0.73 C
1921
16.0 C
+0.69 C
1922
15.3 C
+0.05 C
1923
14.9 C
-0.34 C
1924
14.8 C
-0.49 C
1925
15.5 C
+0.20 C
1926
14.7 C
-0.53 C
1927
16.3 C
+0.99 C
1928
15.2 C
-0.05 C
1929
14.4 C
-0.84 C
1930
15.3 C
+0.06 C
1931
15.2 C
-0.05 C
1932
14.7 C
-0.53 C
1933
15.9 C
+0.62 C
1934
16.9 C
+1.66 C
1935
15.6 C
+0.34 C
1936
15.4 C
+0.17 C
1937
15.5 C
+0.25 C
1938
15.8 C
+0.52 C
1939
15.8 C
+0.51 C
1940
15.6 C
+0.29 C
1941
15.1 C
-0.15 C
1942
15.4 C
+0.13 C
1943
16.0 C
+0.70 C
1944
15.3 C
+0.07 C
1945
16.0 C
+0.74 C
1946
16.2 C
+0.96 C
1947
15.0 C
-0.25 C
1948
14.9 C
-0.32 C
1949
14.9 C
-0.41 C
1950
16.4 C
+1.10 C
1951
15.7 C
+0.40 C
1952
15.6 C
+0.36 C
1953
16.0 C
+0.78 C
1954
16.7 C
+1.44 C
1955
15.5 C
+0.19 C
1956
15.7 C
+0.46 C
1957
15.8 C
+0.55 C
1958
15.7 C
+0.46 C
1959
15.6 C
+0.32 C
1960
14.9 C
-0.37 C
1961
14.4 C
-0.91 C
1962
14.9 C
-0.36 C
1963
15.2 C
-0.05 C
1964
14.9 C
-0.36 C
1965
15.5 C
+0.26 C
1966
14.9 C
-0.37 C
1967
15.5 C
+0.19 C
1968
14.2 C
-1.05 C
1969
15.7 C
+0.45 C
1970
14.9 C
-0.33 C
1971
15.3 C
+0.04 C
1972
15.5 C
+0.26 C
The annual mean temperature here has risen by 0.08 C (0.01 to 0.14) per decade over 1895 to 1972. In Fahrenheit: 0.14 F (0.02 to 0.25) per decade. The slope is a straight line fitted to 72 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Roswell Muni AP
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.08 C (0.01 to 0.14) per decade
0.14 F (0.02 to 0.25) per decade
1895 to 1972
72
Rise
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.5) per decade
1895 to 1972
72
Rise
Mean daily minimum
0.00 C (-0.11 to 0.10) per decade
-0.01 F (-0.20 to 0.18) per decade
1895 to 1972
72
Not clearly different from zero
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 1972
Yearly extremes at Roswell Muni AP: 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
39.4 C (102.9 F)
80
Coldest night (TNn)
-31.1 C (-24.0 F)
1933
-16.9 C (1.5 F)
80
Wettest day (Rx1day)
143.5 mm (5.6 in)
1901
39.5 mm (1.6 in)
80
Wettest five days (Rx5day)
168.9 mm (6.6 in)
1901
56.1 mm (2.2 in)
80
Longest dry spell (CDD)
121 days
1972
56 days
80
Hottest day (TXx)
The hottest day of the year at Roswell Muni AP, 1893 to 1972. The record is 43.3 C (109.9 F) in 1896, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Roswell Muni AP 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
41.7 C (107.1 F)
1902
41.7 C (107.1 F)
1903
36.1 C (97.0 F)
1904
36.7 C (98.1 F)
1905
38.3 C (100.9 F)
1906
38.3 C (100.9 F)
1907
40.0 C (104.0 F)
1908
38.3 C (100.9 F)
1909
40.6 C (105.1 F)
1910
40.0 C (104.0 F)
1911
38.9 C (102.0 F)
1912
37.2 C (99.0 F)
1913
39.4 C (102.9 F)
1914
36.1 C (97.0 F)
1915
38.9 C (102.0 F)
1916
37.8 C (100.0 F)
1917
38.9 C (102.0 F)
1918
41.1 C (106.0 F)
1919
36.7 C (98.1 F)
1920
38.3 C (100.9 F)
1921
39.4 C (102.9 F)
1922
38.9 C (102.0 F)
1923
38.3 C (100.9 F)
1924
41.1 C (106.0 F)
1925
40.0 C (104.0 F)
1926
36.7 C (98.1 F)
1927
38.3 C (100.9 F)
1928
40.0 C (104.0 F)
1929
38.3 C (100.9 F)
1930
39.4 C (102.9 F)
1931
38.3 C (100.9 F)
1932
39.4 C (102.9 F)
1933
40.0 C (104.0 F)
1934
39.4 C (102.9 F)
1935
39.4 C (102.9 F)
1936
39.4 C (102.9 F)
1937
38.9 C (102.0 F)
1938
38.9 C (102.0 F)
1939
41.7 C (107.1 F)
1940
38.3 C (100.9 F)
1941
35.0 C (95.0 F)
1942
39.4 C (102.9 F)
1943
39.4 C (102.9 F)
1944
40.6 C (105.1 F)
1945
38.9 C (102.0 F)
1946
39.4 C (102.9 F)
1947
40.0 C (104.0 F)
1948
40.6 C (105.1 F)
1949
39.4 C (102.9 F)
1950
40.0 C (104.0 F)
1951
42.2 C (108.0 F)
1952
41.7 C (107.1 F)
1953
41.7 C (107.1 F)
1954
41.7 C (107.1 F)
1955
38.9 C (102.0 F)
1956
40.0 C (104.0 F)
1957
42.2 C (108.0 F)
1958
43.3 C (109.9 F)
1959
40.0 C (104.0 F)
1960
41.7 C (107.1 F)
1961
39.4 C (102.9 F)
1962
38.9 C (102.0 F)
1963
41.7 C (107.1 F)
1964
40.6 C (105.1 F)
1965
38.9 C (102.0 F)
1966
41.7 C (107.1 F)
1967
39.4 C (102.9 F)
1968
42.8 C (109.0 F)
1969
41.1 C (106.0 F)
1970
40.6 C (105.1 F)
1971
41.1 C (106.0 F)
1972
40.0 C (104.0 F)
Coldest night (TNn)
The coldest night of the year at Roswell Muni AP, 1893 to 1972. The record is -31.1 C (-24.0 F) in 1933, marked on the chart; the median year is -16.9 C (1.5 F).
Coldest night (TNn) at Roswell Muni AP 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)
1905
-28.9 C (-20.0 F)
1906
-21.1 C (-6.0 F)
1907
-8.3 C (17.1 F)
1908
-11.1 C (12.0 F)
1909
-23.3 C (-9.9 F)
1910
-18.3 C (-0.9 F)
1911
-19.4 C (-2.9 F)
1912
-18.9 C (-2.0 F)
1913
-28.3 C (-18.9 F)
1914
-13.3 C (8.1 F)
1915
-17.2 C (1.0 F)
1916
-11.7 C (10.9 F)
1917
-14.4 C (6.1 F)
1918
-22.2 C (-8.0 F)
1919
-18.9 C (-2.0 F)
1920
-18.3 C (-0.9 F)
1921
-12.8 C (9.0 F)
1922
-16.7 C (1.9 F)
1923
-20.0 C (-4.0 F)
1924
-17.2 C (1.0 F)
1925
-11.7 C (10.9 F)
1926
-18.3 C (-0.9 F)
1927
-12.8 C (9.0 F)
1928
-15.0 C (5.0 F)
1929
-17.8 C (0.0 F)
1930
-18.9 C (-2.0 F)
1931
-15.6 C (3.9 F)
1932
-16.1 C (3.0 F)
1933
-31.1 C (-24.0 F)
1934
-9.4 C (15.1 F)
1935
-13.3 C (8.1 F)
1936
-12.2 C (10.0 F)
1937
-12.2 C (10.0 F)
1938
-17.8 C (0.0 F)
1939
-16.1 C (3.0 F)
1940
-14.4 C (6.1 F)
1941
-7.2 C (19.0 F)
1942
-13.9 C (7.0 F)
1943
-13.9 C (7.0 F)
1944
-12.2 C (10.0 F)
1945
-10.6 C (12.9 F)
1946
-13.9 C (7.0 F)
1947
-19.4 C (-2.9 F)
1948
-23.3 C (-9.9 F)
1949
-26.1 C (-15.0 F)
1950
-13.9 C (7.0 F)
1951
-22.2 C (-8.0 F)
1952
-12.8 C (9.0 F)
1953
-19.4 C (-2.9 F)
1954
-15.6 C (3.9 F)
1955
-12.2 C (10.0 F)
1956
-16.1 C (3.0 F)
1957
-14.4 C (6.1 F)
1958
-11.7 C (10.9 F)
1959
-12.2 C (10.0 F)
1960
-18.3 C (-0.9 F)
1961
-18.3 C (-0.9 F)
1962
-31.1 C (-24.0 F)
1963
-30.0 C (-22.0 F)
1964
-22.8 C (-9.0 F)
1965
-20.0 C (-4.0 F)
1966
-26.7 C (-16.1 F)
1967
-18.9 C (-2.0 F)
1968
-14.4 C (6.1 F)
1969
-18.9 C (-2.0 F)
1970
-17.8 C (0.0 F)
1971
-20.0 C (-4.0 F)
1972
-18.9 C (-2.0 F)
Wettest day (Rx1day)
The wettest day of the year at Roswell Muni AP, 1893 to 1972. The record is 143.5 mm (5.6 in) in 1901, marked on the chart; the median year is 39.5 mm (1.6 in).
Wettest day (Rx1day) at Roswell Muni AP by year
Year
Wettest day (Rx1day)
1893
18.8 mm (0.7 in)
1894
50.3 mm (2.0 in)
1895
77.2 mm (3.0 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)
1905
55.9 mm (2.2 in)
1906
35.1 mm (1.4 in)
1907
25.7 mm (1.0 in)
1908
31.8 mm (1.3 in)
1909
32.8 mm (1.3 in)
1910
15.7 mm (0.6 in)
1911
42.2 mm (1.7 in)
1912
43.4 mm (1.7 in)
1913
25.4 mm (1.0 in)
1914
41.9 mm (1.6 in)
1915
88.4 mm (3.5 in)
1916
116.1 mm (4.6 in)
1917
23.6 mm (0.9 in)
1918
19.3 mm (0.8 in)
1919
75.4 mm (3.0 in)
1920
40.1 mm (1.6 in)
1921
52.8 mm (2.1 in)
1922
15.5 mm (0.6 in)
1923
74.2 mm (2.9 in)
1924
34.8 mm (1.4 in)
1925
31.5 mm (1.2 in)
1926
24.9 mm (1.0 in)
1927
33.8 mm (1.3 in)
1928
33.3 mm (1.3 in)
1929
44.5 mm (1.8 in)
1930
36.6 mm (1.4 in)
1931
56.9 mm (2.2 in)
1932
51.6 mm (2.0 in)
1933
30.7 mm (1.2 in)
1934
30.2 mm (1.2 in)
1935
37.8 mm (1.5 in)
1936
49.5 mm (1.9 in)
1937
42.2 mm (1.7 in)
1938
18.5 mm (0.7 in)
1939
33.0 mm (1.3 in)
1940
65.0 mm (2.6 in)
1941
57.4 mm (2.3 in)
1942
61.2 mm (2.4 in)
1943
48.8 mm (1.9 in)
1944
85.9 mm (3.4 in)
1945
24.4 mm (1.0 in)
1946
41.1 mm (1.6 in)
1947
28.4 mm (1.1 in)
1948
21.8 mm (0.9 in)
1949
33.0 mm (1.3 in)
1950
49.5 mm (1.9 in)
1951
22.4 mm (0.9 in)
1952
30.7 mm (1.2 in)
1953
21.1 mm (0.8 in)
1954
74.4 mm (2.9 in)
1955
43.9 mm (1.7 in)
1956
12.4 mm (0.5 in)
1957
29.2 mm (1.1 in)
1958
56.1 mm (2.2 in)
1959
30.5 mm (1.2 in)
1960
46.7 mm (1.8 in)
1961
24.4 mm (1.0 in)
1962
40.9 mm (1.6 in)
1963
31.5 mm (1.2 in)
1964
27.9 mm (1.1 in)
1965
26.9 mm (1.1 in)
1966
33.0 mm (1.3 in)
1967
49.3 mm (1.9 in)
1968
68.3 mm (2.7 in)
1969
38.9 mm (1.5 in)
1970
35.6 mm (1.4 in)
1971
30.7 mm (1.2 in)
1972
108.5 mm (4.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Roswell Muni AP, 1893 to 1972. The record is 168.9 mm (6.6 in) in 1901, marked on the chart; the median year is 56.1 mm (2.2 in).
Wettest five days (Rx5day) at Roswell Muni AP by year
Year
Wettest five days (Rx5day)
1893
18.8 mm (0.7 in)
1894
52.8 mm (2.1 in)
1895
89.1 mm (3.5 in)
1896
125.5 mm (4.9 in)
1897
45.8 mm (1.8 in)
1898
116.1 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)
1905
122.3 mm (4.8 in)
1906
54.8 mm (2.2 in)
1907
52.2 mm (2.1 in)
1908
41.5 mm (1.6 in)
1909
37.3 mm (1.5 in)
1910
28.9 mm (1.1 in)
1911
51.8 mm (2.0 in)
1912
55.7 mm (2.2 in)
1913
59.4 mm (2.3 in)
1914
82.6 mm (3.3 in)
1915
138.0 mm (5.4 in)
1916
141.5 mm (5.6 in)
1917
42.6 mm (1.7 in)
1918
34.3 mm (1.4 in)
1919
130.6 mm (5.1 in)
1920
44.9 mm (1.8 in)
1921
102.8 mm (4.0 in)
1922
46.2 mm (1.8 in)
1923
141.2 mm (5.6 in)
1924
56.1 mm (2.2 in)
1925
77.3 mm (3.0 in)
1926
66.8 mm (2.6 in)
1927
49.5 mm (1.9 in)
1928
65.5 mm (2.6 in)
1929
58.5 mm (2.3 in)
1930
45.5 mm (1.8 in)
1931
81.3 mm (3.2 in)
1932
98.4 mm (3.9 in)
1933
61.2 mm (2.4 in)
1934
36.9 mm (1.5 in)
1935
42.9 mm (1.7 in)
1936
97.7 mm (3.8 in)
1937
71.4 mm (2.8 in)
1938
33.4 mm (1.3 in)
1939
60.9 mm (2.4 in)
1940
70.6 mm (2.8 in)
1941
132.8 mm (5.2 in)
1942
99.6 mm (3.9 in)
1943
52.6 mm (2.1 in)
1944
90.2 mm (3.6 in)
1945
34.9 mm (1.4 in)
1946
57.6 mm (2.3 in)
1947
31.7 mm (1.2 in)
1948
46.5 mm (1.8 in)
1949
48.3 mm (1.9 in)
1950
109.9 mm (4.3 in)
1951
31.0 mm (1.2 in)
1952
56.1 mm (2.2 in)
1953
43.8 mm (1.7 in)
1954
112.3 mm (4.4 in)
1955
71.3 mm (2.8 in)
1956
34.3 mm (1.4 in)
1957
29.5 mm (1.2 in)
1958
75.1 mm (3.0 in)
1959
36.8 mm (1.4 in)
1960
88.8 mm (3.5 in)
1961
32.8 mm (1.3 in)
1962
55.6 mm (2.2 in)
1963
46.0 mm (1.8 in)
1964
33.5 mm (1.3 in)
1965
35.8 mm (1.4 in)
1966
51.3 mm (2.0 in)
1967
61.7 mm (2.4 in)
1968
113.3 mm (4.5 in)
1969
73.2 mm (2.9 in)
1970
49.3 mm (1.9 in)
1971
38.4 mm (1.5 in)
1972
112.5 mm (4.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Roswell Muni AP, 1893 to 1972. The record is 121 days in 1972, marked on the chart; the median year is 56 days.
Longest dry spell (CDD) at Roswell Muni AP by year
Year
Longest dry spell (CDD)
1893
30 days
1894
58 days
1895
66 days
1896
66 days
1897
66 days
1898
59 days
1899
48 days
1900
62 days
1901
62 days
1902
63 days
1903
93 days
1904
42 days
1905
44 days
1906
39 days
1907
101 days
1908
64 days
1909
68 days
1910
56 days
1911
34 days
1912
50 days
1913
31 days
1914
40 days
1915
61 days
1916
62 days
1917
75 days
1918
87 days
1919
47 days
1920
62 days
1921
92 days
1922
57 days
1923
28 days
1924
42 days
1925
72 days
1926
55 days
1927
72 days
1928
50 days
1929
45 days
1930
55 days
1931
63 days
1932
48 days
1933
42 days
1934
54 days
1935
48 days
1936
61 days
1937
44 days
1938
51 days
1939
48 days
1940
56 days
1941
28 days
1942
50 days
1943
80 days
1944
39 days
1945
77 days
1946
33 days
1947
46 days
1948
54 days
1949
38 days
1950
101 days
1951
50 days
1952
41 days
1953
61 days
1954
81 days
1955
64 days
1956
106 days
1957
52 days
1958
45 days
1959
68 days
1960
94 days
1961
53 days
1962
43 days
1963
50 days
1964
68 days
1965
54 days
1966
102 days
1967
83 days
1968
39 days
1969
43 days
1970
62 days
1971
65 days
1972
121 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.
Frost Dates and Growing Season
72 years with a frost
Across 72 years with a frost, the median last spring frost at Roswell Muni AP falls on 11 April and the median first autumn frost on 28 October, which leaves a median of 200 days between them.
In 1943 to 1972 the median growing season was 197 days. That is 5 days fewer than in 1895 to 1930.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Roswell Muni AP
Measure
Median, all years
Earliest period (1895 to 1930)
Recent period (1943 to 1972)
Recent against earliest
Fitted trend
Last spring frost
11 April
14 April
13 April
1 day earlier
+0.6 days per decade
First autumn frost
28 October
28 October
26 October
2 days earlier
-0.2 days per decade
Growing days
200 days
202 days
197 days
5 days fewer
-0.8 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
77 years, 1895 to 1972
A day with at least 39.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 146.3 mm (5.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Roswell Muni AP: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
39.7 mm (1.6 in)
5 years
60.3 mm (2.4 in)
10 years
76.7 mm (3.0 in)
25 years
101.0 mm (4.0 in)
50 years
122.2 mm (4.8 in)
100 years
146.3 mm (5.8 in)
Longer than the 77 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 77 years of values from 1895 to 1972.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 143.5 mm (5.6 in) in 1901; 116.1 mm (4.6 in) in 1916; 114.8 mm (4.5 in) in 1898.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Roswell Muni AP standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Roswell Muni AP 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.