Record envelope, standing records and threshold days for Balmorhea (USC00410498), Texas, United States, with 101 years of record.
Key Facts for Balmorhea
Balmorhea (USC00410498) is a weather station in Texas, United States at 30.98 latitude and -103.74 longitude, 971 m (3,185 ft) above sea level.
The station reports from 1923 to 2023, 101 years of record.
1,464 records set at Balmorhea still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Balmorhea set a daily record precipitation of 11.4 mm (0.4 in) on 30 October 2023.
About the Station
Location: Texas, United States, 30.98 latitude, -103.74 longitude.
Elevation: 971 m (3,185 ft).
Period of record: 1923 to 2023, 101 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 Balmorhea. 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 Balmorhea, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.7 C (89.1 F)
-22.2 C (-8.0 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-22.8 C (-9.0 F)
n/a
n/a
Mar
38.3 C (100.9 F)
-12.8 C (9.0 F)
n/a
n/a
Apr
39.4 C (102.9 F)
-3.3 C (26.1 F)
n/a
n/a
May
42.2 C (108.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
44.4 C (111.9 F)
6.7 C (44.1 F)
n/a
n/a
Jul
43.9 C (111.0 F)
12.8 C (55.0 F)
n/a
n/a
Aug
43.3 C (109.9 F)
10.0 C (50.0 F)
n/a
n/a
Sep
42.8 C (109.0 F)
3.9 C (39.0 F)
n/a
n/a
Oct
38.3 C (100.9 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
33.3 C (91.9 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
31.7 C (89.1 F)
-16.7 C (1.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Balmorhea still stand. 1948 holds the most, with 40.
Standing records at Balmorhea by the year they were set
Year set
Standing records
1923
6
1924
21
1925
29
1926
10
1927
11
1928
16
1929
12
1930
14
1931
13
1932
15
1933
4
1934
7
1935
15
1936
8
1937
11
1938
23
1939
16
1940
25
1941
6
1942
13
1943
19
1944
16
1945
25
1946
22
1947
10
1948
40
1949
15
1950
16
1951
29
1952
19
1953
23
1954
11
1955
17
1956
16
1957
24
1958
17
1959
12
1960
16
1961
11
1962
20
1963
13
1964
3
1965
14
1966
18
1967
19
1968
4
1969
15
1970
12
1971
22
1972
14
1973
13
1974
9
1975
10
1976
18
1977
10
1978
15
1979
19
1980
18
1981
13
1982
11
1983
27
1984
11
1985
15
1986
18
1987
13
1988
5
1989
36
1990
12
1991
10
1992
8
1993
10
1994
9
1995
12
1996
20
1997
23
1998
12
1999
8
2000
28
2001
10
2002
18
2003
7
2004
12
2005
11
2006
11
2007
2
2008
8
2009
7
2010
2
2011
24
2012
9
2013
9
2014
13
2015
8
2016
11
2017
15
2018
20
2019
20
2020
22
2021
17
2022
5
2023
3
All-Time Record Progression
12 new records
12 all-time records were set at Balmorhea between 28 November 1969 and 4 February 2011. Each dot is a new record.
When Balmorhea set new all-time records
Date
Kind
Detail
1969-11-28
Record daily snowfall
Record daily snowfall 17.8 cm (7.0 in)
1972-05-31
Record daily precipitation
Record daily precipitation 85.6 mm (3.4 in)
1973-07-15
Record daily precipitation
Record daily precipitation 104.9 mm (4.1 in)
1980-11-17
Record snow depth
Record snow depth 12.7 cm (5.0 in)
1980-11-18
Record snow depth
Record snow depth 15.2 cm (6.0 in)
1983-01-01
Record daily snowfall
Record daily snowfall 20.3 cm (8.0 in)
1983-01-01
Record snow depth
Record snow depth 20.3 cm (8.0 in)
1983-12-25
Record low maximum temperature
Record low maximum temperature -8.3 C (17.1 F)
1989-12-22
Record low maximum temperature
Record low maximum temperature -10.0 C (14.0 F)
1994-06-26
Record high minimum temperature
Record high minimum temperature 31.1 C (88.0 F)
1994-06-27
Record high minimum temperature
Record high minimum temperature 31.7 C (89.1 F)
2011-02-04
Record low maximum temperature
Record low maximum temperature -12.2 C (10.0 F)
Wettest Day of Each Month
Jul: 104.9 mm (4.1 in)
The wettest day on record for each calendar month at Balmorhea. The most was 104.9 mm (4.1 in) on 15 July 1973.
Record daily precipitation for each month at Balmorhea
Month
Record daily precipitation (mm)
Date
Jan
53.3 mm (2.1 in)
10 January 2013
Feb
43.4 mm (1.7 in)
28 February 1981
Mar
50.3 mm (2.0 in)
31 March 1945
Apr
59.4 mm (2.3 in)
15 April 1981
May
85.6 mm (3.4 in)
31 May 1972
Jun
83.8 mm (3.3 in)
6 June 1930
Jul
104.9 mm (4.1 in)
15 July 1973
Aug
80.5 mm (3.2 in)
6 August 1940
Sep
83.8 mm (3.3 in)
29 September 1932
Oct
51.8 mm (2.0 in)
24 October 1941
Nov
40.4 mm (1.6 in)
27 November 1968
Dec
50.8 mm (2.0 in)
21 December 1986
Period of Record Coverage
1923 to 2023
Complete yearUnder 90 percent of days
101 years of record at Balmorhea, 1923 to 2023. 23 years have data for under 90 percent of days and are left out of rankings: 1923, 1947, 1950, 1964, 1972, 1973, 1974, 1975 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 72 complete years at Balmorhea, 1924 to 2020. Blue stripes are years cooler than the station's own mean of 18.0 C (64.5 F); red stripes are warmer. The coolest year was 1987, at 16.7 C (62.0 F), and the warmest was 1934, at 19.3 C (66.7 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Balmorhea as warming stripes, 1924 to 2020
Year
Annual mean temperature
Difference from the station mean
1924
17.8 C
-0.25 C
1925
18.2 C
+0.15 C
1926
17.4 C
-0.62 C
1927
18.8 C
+0.80 C
1928
17.6 C
-0.41 C
1929
17.4 C
-0.63 C
1930
17.6 C
-0.40 C
1931
17.7 C
-0.39 C
1932
17.3 C
-0.78 C
1933
18.8 C
+0.78 C
1934
19.3 C
+1.26 C
1935
18.0 C
+0.00 C
1936
17.6 C
-0.43 C
1937
18.0 C
-0.03 C
1938
18.5 C
+0.50 C
1939
18.4 C
+0.33 C
1940
17.8 C
-0.26 C
1941
17.5 C
-0.56 C
1942
18.4 C
+0.39 C
1944
18.3 C
+0.29 C
1948
19.2 C
+1.15 C
1949
18.3 C
+0.22 C
1951
19.0 C
+0.91 C
1952
18.6 C
+0.56 C
1953
18.9 C
+0.81 C
1954
18.6 C
+0.54 C
1955
17.5 C
-0.51 C
1956
18.4 C
+0.39 C
1957
18.9 C
+0.87 C
1958
18.2 C
+0.17 C
1959
18.3 C
+0.23 C
1960
18.0 C
-0.07 C
1961
18.0 C
-0.09 C
1962
18.9 C
+0.81 C
1963
18.8 C
+0.75 C
1966
18.2 C
+0.14 C
1967
18.5 C
+0.43 C
1968
17.6 C
-0.43 C
1969
18.6 C
+0.51 C
1970
18.2 C
+0.11 C
1971
18.7 C
+0.69 C
1976
16.8 C
-1.24 C
1977
18.8 C
+0.73 C
1978
17.8 C
-0.20 C
1979
16.8 C
-1.25 C
1980
18.0 C
-0.09 C
1981
17.7 C
-0.36 C
1982
17.9 C
-0.15 C
1983
17.4 C
-0.62 C
1984
17.2 C
-0.85 C
1985
17.7 C
-0.31 C
1986
17.9 C
-0.18 C
1987
16.7 C
-1.37 C
1988
17.5 C
-0.56 C
1989
18.0 C
-0.06 C
1990
17.6 C
-0.44 C
1991
16.8 C
-1.20 C
1992
17.1 C
-0.93 C
1993
17.4 C
-0.65 C
1994
18.2 C
+0.16 C
1996
18.0 C
-0.09 C
1997
16.9 C
-1.13 C
1998
18.6 C
+0.58 C
1999
18.4 C
+0.37 C
2001
18.6 C
+0.52 C
2005
17.6 C
-0.44 C
2010
17.5 C
-0.56 C
2011
18.8 C
+0.80 C
2012
18.7 C
+0.63 C
2017
18.7 C
+0.65 C
2018
17.8 C
-0.23 C
2020
18.6 C
+0.52 C
The fitted trend in annual mean temperature here over 1924 to 2020 is -0.03 C (-0.08 to 0.03) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.15 to 0.05) 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 Balmorhea
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.03 C (-0.08 to 0.03) per decade
-0.05 F (-0.15 to 0.05) per decade
1924 to 2020
72
Not clearly different from zero
Mean daily maximum
-0.01 C (-0.09 to 0.07) per decade
-0.03 F (-0.17 to 0.12) per decade
1924 to 2020
72
Not clearly different from zero
Mean daily minimum
-0.04 C (-0.10 to 0.01) per decade
-0.08 F (-0.17 to 0.01) per decade
1924 to 2020
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
1923 to 2023
Yearly extremes at Balmorhea: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1939
41.1 C (106.0 F)
101
Coldest night (TNn)
-22.8 C (-9.0 F)
1933
-10.6 C (12.9 F)
101
Wettest day (Rx1day)
104.9 mm (4.1 in)
1973
42.9 mm (1.7 in)
101
Wettest five days (Rx5day)
236.5 mm (9.3 in)
1973
59.2 mm (2.3 in)
101
Longest dry spell (CDD)
193 days
2011
57 days
101
Hottest day (TXx)
The hottest day of the year at Balmorhea, 1923 to 2023. The record is 44.4 C (111.9 F) in 1939, marked on the chart; the median year is 41.1 C (106.0 F).
Hottest day (TXx) at Balmorhea by year
Year
Hottest day (TXx)
1923
36.7 C (98.1 F)
1924
43.3 C (109.9 F)
1925
41.7 C (107.1 F)
1926
39.4 C (102.9 F)
1927
38.9 C (102.0 F)
1928
41.7 C (107.1 F)
1929
40.6 C (105.1 F)
1930
40.0 C (104.0 F)
1931
38.9 C (102.0 F)
1932
41.1 C (106.0 F)
1933
41.7 C (107.1 F)
1934
41.7 C (107.1 F)
1935
41.1 C (106.0 F)
1936
39.4 C (102.9 F)
1937
40.6 C (105.1 F)
1938
40.0 C (104.0 F)
1939
44.4 C (111.9 F)
1940
41.1 C (106.0 F)
1941
37.8 C (100.0 F)
1942
42.8 C (109.0 F)
1943
42.2 C (108.0 F)
1944
43.3 C (109.9 F)
1945
43.3 C (109.9 F)
1946
41.7 C (107.1 F)
1947
41.1 C (106.0 F)
1948
43.9 C (111.0 F)
1949
41.7 C (107.1 F)
1950
40.0 C (104.0 F)
1951
43.3 C (109.9 F)
1952
41.7 C (107.1 F)
1953
42.8 C (109.0 F)
1954
41.1 C (106.0 F)
1955
41.1 C (106.0 F)
1956
40.6 C (105.1 F)
1957
42.8 C (109.0 F)
1958
43.9 C (111.0 F)
1959
40.6 C (105.1 F)
1960
42.8 C (109.0 F)
1961
40.0 C (104.0 F)
1962
41.1 C (106.0 F)
1963
40.0 C (104.0 F)
1964
33.9 C (93.0 F)
1965
40.0 C (104.0 F)
1966
41.1 C (106.0 F)
1967
40.6 C (105.1 F)
1968
43.3 C (109.9 F)
1969
42.2 C (108.0 F)
1970
41.1 C (106.0 F)
1971
42.2 C (108.0 F)
1972
41.1 C (106.0 F)
1973
41.7 C (107.1 F)
1974
40.6 C (105.1 F)
1975
39.4 C (102.9 F)
1976
40.6 C (105.1 F)
1977
42.2 C (108.0 F)
1978
42.8 C (109.0 F)
1979
41.1 C (106.0 F)
1980
42.2 C (108.0 F)
1981
41.7 C (107.1 F)
1982
39.4 C (102.9 F)
1983
41.7 C (107.1 F)
1984
38.9 C (102.0 F)
1985
40.0 C (104.0 F)
1986
40.6 C (105.1 F)
1987
41.1 C (106.0 F)
1988
39.4 C (102.9 F)
1989
42.2 C (108.0 F)
1990
42.2 C (108.0 F)
1991
38.9 C (102.0 F)
1992
39.4 C (102.9 F)
1993
38.3 C (100.9 F)
1994
43.9 C (111.0 F)
1995
41.7 C (107.1 F)
1996
40.6 C (105.1 F)
1997
39.4 C (102.9 F)
1998
42.8 C (109.0 F)
1999
41.7 C (107.1 F)
2000
40.6 C (105.1 F)
2001
40.6 C (105.1 F)
2002
42.2 C (108.0 F)
2003
41.1 C (106.0 F)
2004
42.2 C (108.0 F)
2005
40.6 C (105.1 F)
2006
40.0 C (104.0 F)
2007
39.4 C (102.9 F)
2008
41.1 C (106.0 F)
2009
38.9 C (102.0 F)
2010
41.1 C (106.0 F)
2011
43.3 C (109.9 F)
2012
40.6 C (105.1 F)
2013
38.3 C (100.9 F)
2014
41.1 C (106.0 F)
2015
38.3 C (100.9 F)
2016
41.1 C (106.0 F)
2017
41.7 C (107.1 F)
2018
41.1 C (106.0 F)
2019
42.2 C (108.0 F)
2020
42.8 C (109.0 F)
2021
42.2 C (108.0 F)
2022
40.6 C (105.1 F)
2023
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Balmorhea, 1923 to 2023. The record is -22.8 C (-9.0 F) in 1933, marked on the chart; the median year is -10.6 C (12.9 F).
Coldest night (TNn) at Balmorhea by year
Year
Coldest night (TNn)
1923
-6.7 C (19.9 F)
1924
-11.7 C (10.9 F)
1925
-9.4 C (15.1 F)
1926
-8.9 C (16.0 F)
1927
-10.6 C (12.9 F)
1928
-11.1 C (12.0 F)
1929
-11.1 C (12.0 F)
1930
-15.0 C (5.0 F)
1931
-7.8 C (18.0 F)
1932
-9.4 C (15.1 F)
1933
-22.8 C (-9.0 F)
1934
-6.7 C (19.9 F)
1935
-12.8 C (9.0 F)
1936
-10.0 C (14.0 F)
1937
-11.7 C (10.9 F)
1938
-10.0 C (14.0 F)
1939
-9.4 C (15.1 F)
1940
-13.9 C (7.0 F)
1941
-7.8 C (18.0 F)
1942
-10.0 C (14.0 F)
1943
-12.2 C (10.0 F)
1944
-8.3 C (17.1 F)
1945
-8.3 C (17.1 F)
1946
-10.0 C (14.0 F)
1947
-17.2 C (1.0 F)
1948
-12.8 C (9.0 F)
1949
-19.4 C (-2.9 F)
1950
-8.9 C (16.0 F)
1951
-17.8 C (0.0 F)
1952
-8.9 C (16.0 F)
1953
-15.6 C (3.9 F)
1954
-8.9 C (16.0 F)
1955
-10.6 C (12.9 F)
1956
-15.0 C (5.0 F)
1957
-10.6 C (12.9 F)
1958
-10.0 C (14.0 F)
1959
-12.2 C (10.0 F)
1960
-12.8 C (9.0 F)
1961
-6.7 C (19.9 F)
1962
-22.2 C (-8.0 F)
1963
-13.3 C (8.1 F)
1964
-9.4 C (15.1 F)
1965
-10.6 C (12.9 F)
1966
-8.9 C (16.0 F)
1967
-11.1 C (12.0 F)
1968
-7.8 C (18.0 F)
1969
-10.0 C (14.0 F)
1970
-10.6 C (12.9 F)
1971
-13.9 C (7.0 F)
1972
-15.0 C (5.0 F)
1973
-13.9 C (7.0 F)
1974
-10.6 C (12.9 F)
1975
-10.0 C (14.0 F)
1976
-12.2 C (10.0 F)
1977
-13.9 C (7.0 F)
1978
-10.0 C (14.0 F)
1979
-15.0 C (5.0 F)
1980
-10.6 C (12.9 F)
1981
-12.8 C (9.0 F)
1982
-12.2 C (10.0 F)
1983
-16.7 C (1.9 F)
1984
-7.2 C (19.0 F)
1985
-16.7 C (1.9 F)
1986
-13.3 C (8.1 F)
1987
-12.2 C (10.0 F)
1988
-8.9 C (16.0 F)
1989
-15.6 C (3.9 F)
1990
-12.8 C (9.0 F)
1991
-6.7 C (19.9 F)
1992
-11.1 C (12.0 F)
1993
-9.4 C (15.1 F)
1994
-8.3 C (17.1 F)
1995
-8.3 C (17.1 F)
1996
-12.8 C (9.0 F)
1997
-13.3 C (8.1 F)
1998
-11.7 C (10.9 F)
1999
-10.0 C (14.0 F)
2000
-8.9 C (16.0 F)
2001
-9.4 C (15.1 F)
2002
-10.0 C (14.0 F)
2003
-7.8 C (18.0 F)
2004
-10.0 C (14.0 F)
2005
-13.9 C (7.0 F)
2006
-7.2 C (19.0 F)
2007
-6.1 C (21.0 F)
2008
-11.7 C (10.9 F)
2009
-11.1 C (12.0 F)
2010
-10.0 C (14.0 F)
2011
-16.1 C (3.0 F)
2012
-8.3 C (17.1 F)
2013
-7.8 C (18.0 F)
2014
-7.8 C (18.0 F)
2015
-8.3 C (17.1 F)
2016
-10.0 C (14.0 F)
2017
-11.7 C (10.9 F)
2018
-10.6 C (12.9 F)
2019
-6.7 C (19.9 F)
2020
-7.2 C (19.0 F)
2021
-13.9 C (7.0 F)
2022
-13.3 C (8.1 F)
2023
-2.2 C (28.0 F)
Wettest day (Rx1day)
The wettest day of the year at Balmorhea, 1923 to 2023. The record is 104.9 mm (4.1 in) in 1973, marked on the chart; the median year is 42.9 mm (1.7 in).
Wettest day (Rx1day) at Balmorhea by year
Year
Wettest day (Rx1day)
1923
20.3 mm (0.8 in)
1924
40.4 mm (1.6 in)
1925
47.8 mm (1.9 in)
1926
43.4 mm (1.7 in)
1927
15.5 mm (0.6 in)
1928
46.2 mm (1.8 in)
1929
34.8 mm (1.4 in)
1930
83.8 mm (3.3 in)
1931
32.8 mm (1.3 in)
1932
83.8 mm (3.3 in)
1933
43.7 mm (1.7 in)
1934
11.9 mm (0.5 in)
1935
42.9 mm (1.7 in)
1936
26.9 mm (1.1 in)
1937
39.6 mm (1.6 in)
1938
39.1 mm (1.5 in)
1939
53.8 mm (2.1 in)
1940
80.5 mm (3.2 in)
1941
51.8 mm (2.0 in)
1942
45.7 mm (1.8 in)
1943
38.6 mm (1.5 in)
1944
52.1 mm (2.1 in)
1945
62.2 mm (2.4 in)
1946
46.0 mm (1.8 in)
1947
43.9 mm (1.7 in)
1948
31.0 mm (1.2 in)
1949
21.8 mm (0.9 in)
1950
34.8 mm (1.4 in)
1951
19.8 mm (0.8 in)
1952
57.4 mm (2.3 in)
1953
41.1 mm (1.6 in)
1954
31.8 mm (1.3 in)
1955
49.3 mm (1.9 in)
1956
11.4 mm (0.4 in)
1957
34.3 mm (1.4 in)
1958
58.4 mm (2.3 in)
1959
24.9 mm (1.0 in)
1960
53.3 mm (2.1 in)
1961
51.1 mm (2.0 in)
1962
31.8 mm (1.3 in)
1963
54.9 mm (2.2 in)
1964
9.7 mm (0.38 in)
1965
59.9 mm (2.4 in)
1966
45.7 mm (1.8 in)
1967
45.2 mm (1.8 in)
1968
40.4 mm (1.6 in)
1969
23.6 mm (0.9 in)
1970
39.9 mm (1.6 in)
1971
33.0 mm (1.3 in)
1972
85.6 mm (3.4 in)
1973
104.9 mm (4.1 in)
1974
82.6 mm (3.3 in)
1975
61.2 mm (2.4 in)
1976
22.9 mm (0.9 in)
1977
40.6 mm (1.6 in)
1978
63.5 mm (2.5 in)
1979
34.8 mm (1.4 in)
1980
82.0 mm (3.2 in)
1981
59.4 mm (2.3 in)
1982
33.8 mm (1.3 in)
1983
19.1 mm (0.8 in)
1984
61.0 mm (2.4 in)
1985
26.9 mm (1.1 in)
1986
50.8 mm (2.0 in)
1987
55.9 mm (2.2 in)
1988
42.4 mm (1.7 in)
1989
28.4 mm (1.1 in)
1990
53.3 mm (2.1 in)
1991
53.3 mm (2.1 in)
1992
56.9 mm (2.2 in)
1993
53.3 mm (2.1 in)
1994
36.3 mm (1.4 in)
1995
53.3 mm (2.1 in)
1996
25.4 mm (1.0 in)
1997
43.4 mm (1.7 in)
1998
32.0 mm (1.3 in)
1999
30.5 mm (1.2 in)
2000
20.1 mm (0.8 in)
2001
20.3 mm (0.8 in)
2002
24.1 mm (0.9 in)
2003
50.8 mm (2.0 in)
2004
46.2 mm (1.8 in)
2005
41.9 mm (1.6 in)
2006
33.0 mm (1.3 in)
2007
25.4 mm (1.0 in)
2008
32.8 mm (1.3 in)
2009
50.8 mm (2.0 in)
2010
33.0 mm (1.3 in)
2011
24.1 mm (0.9 in)
2012
41.9 mm (1.6 in)
2013
58.4 mm (2.3 in)
2014
78.7 mm (3.1 in)
2015
43.2 mm (1.7 in)
2016
50.8 mm (2.0 in)
2017
41.9 mm (1.6 in)
2018
50.8 mm (2.0 in)
2019
26.7 mm (1.1 in)
2020
46.2 mm (1.8 in)
2021
63.5 mm (2.5 in)
2022
61.0 mm (2.4 in)
2023
11.4 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Balmorhea, 1923 to 2023. The record is 236.5 mm (9.3 in) in 1973, marked on the chart; the median year is 59.2 mm (2.3 in).
Wettest five days (Rx5day) at Balmorhea by year
Year
Wettest five days (Rx5day)
1923
33.5 mm (1.3 in)
1924
40.4 mm (1.6 in)
1925
56.7 mm (2.2 in)
1926
70.9 mm (2.8 in)
1927
32.8 mm (1.3 in)
1928
100.3 mm (3.9 in)
1929
39.4 mm (1.6 in)
1930
92.2 mm (3.6 in)
1931
43.4 mm (1.7 in)
1932
136.9 mm (5.4 in)
1933
55.8 mm (2.2 in)
1934
26.0 mm (1.0 in)
1935
47.0 mm (1.9 in)
1936
49.7 mm (2.0 in)
1937
56.3 mm (2.2 in)
1938
96.7 mm (3.8 in)
1939
75.1 mm (3.0 in)
1940
119.4 mm (4.7 in)
1941
77.4 mm (3.0 in)
1942
54.6 mm (2.1 in)
1943
50.6 mm (2.0 in)
1944
81.6 mm (3.2 in)
1945
137.5 mm (5.4 in)
1946
56.6 mm (2.2 in)
1947
46.2 mm (1.8 in)
1948
31.0 mm (1.2 in)
1949
45.7 mm (1.8 in)
1950
40.4 mm (1.6 in)
1951
20.0 mm (0.8 in)
1952
92.5 mm (3.6 in)
1953
41.9 mm (1.6 in)
1954
64.1 mm (2.5 in)
1955
59.2 mm (2.3 in)
1956
13.9 mm (0.5 in)
1957
36.8 mm (1.4 in)
1958
145.6 mm (5.7 in)
1959
47.8 mm (1.9 in)
1960
55.3 mm (2.2 in)
1961
83.6 mm (3.3 in)
1962
43.2 mm (1.7 in)
1963
73.5 mm (2.9 in)
1964
15.3 mm (0.6 in)
1965
68.0 mm (2.7 in)
1966
67.6 mm (2.7 in)
1967
67.0 mm (2.6 in)
1968
77.3 mm (3.0 in)
1969
31.5 mm (1.2 in)
1970
54.9 mm (2.2 in)
1971
44.4 mm (1.7 in)
1972
85.6 mm (3.4 in)
1973
236.5 mm (9.3 in)
1974
215.7 mm (8.5 in)
1975
61.2 mm (2.4 in)
1976
31.1 mm (1.2 in)
1977
49.7 mm (2.0 in)
1978
173.6 mm (6.8 in)
1979
62.2 mm (2.4 in)
1980
167.9 mm (6.6 in)
1981
118.8 mm (4.7 in)
1982
70.6 mm (2.8 in)
1983
42.2 mm (1.7 in)
1984
112.3 mm (4.4 in)
1985
69.9 mm (2.8 in)
1986
56.7 mm (2.2 in)
1987
106.4 mm (4.2 in)
1988
51.3 mm (2.0 in)
1989
50.3 mm (2.0 in)
1990
98.0 mm (3.9 in)
1991
93.4 mm (3.7 in)
1992
93.9 mm (3.7 in)
1993
59.7 mm (2.4 in)
1994
51.6 mm (2.0 in)
1995
97.0 mm (3.8 in)
1996
51.0 mm (2.0 in)
1997
64.7 mm (2.5 in)
1998
41.6 mm (1.6 in)
1999
67.8 mm (2.7 in)
2000
35.8 mm (1.4 in)
2001
28.4 mm (1.1 in)
2002
34.3 mm (1.4 in)
2003
58.2 mm (2.3 in)
2004
72.4 mm (2.9 in)
2005
75.2 mm (3.0 in)
2006
58.9 mm (2.3 in)
2007
36.9 mm (1.5 in)
2008
49.1 mm (1.9 in)
2009
58.9 mm (2.3 in)
2010
68.9 mm (2.7 in)
2011
31.7 mm (1.2 in)
2012
57.2 mm (2.3 in)
2013
119.6 mm (4.7 in)
2014
78.7 mm (3.1 in)
2015
72.9 mm (2.9 in)
2016
88.1 mm (3.5 in)
2017
89.6 mm (3.5 in)
2018
82.6 mm (3.3 in)
2019
41.9 mm (1.6 in)
2020
69.1 mm (2.7 in)
2021
102.1 mm (4.0 in)
2022
90.2 mm (3.6 in)
2023
0.0 mm (0.00 in)
Longest dry spell (CDD)
The longest dry spell of the year at Balmorhea, 1923 to 2023. The record is 193 days in 2011, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Balmorhea by year
Year
Longest dry spell (CDD)
1923
14 days
1924
82 days
1925
114 days
1926
42 days
1927
75 days
1928
51 days
1929
43 days
1930
39 days
1931
41 days
1932
44 days
1933
79 days
1934
63 days
1935
65 days
1936
53 days
1937
45 days
1938
64 days
1939
42 days
1940
38 days
1941
31 days
1942
37 days
1943
103 days
1944
72 days
1945
83 days
1946
88 days
1947
46 days
1948
49 days
1949
46 days
1950
57 days
1951
45 days
1952
61 days
1953
58 days
1954
86 days
1955
86 days
1956
70 days
1957
57 days
1958
47 days
1959
35 days
1960
58 days
1961
48 days
1962
39 days
1963
45 days
1964
51 days
1965
70 days
1966
76 days
1967
81 days
1968
51 days
1969
44 days
1970
75 days
1971
145 days
1972
50 days
1973
87 days
1974
55 days
1975
58 days
1976
47 days
1977
43 days
1978
56 days
1979
99 days
1980
62 days
1981
70 days
1982
98 days
1983
50 days
1984
84 days
1985
58 days
1986
56 days
1987
32 days
1988
69 days
1989
83 days
1990
41 days
1991
45 days
1992
36 days
1993
52 days
1994
84 days
1995
47 days
1996
80 days
1997
69 days
1998
74 days
1999
104 days
2000
91 days
2001
57 days
2002
79 days
2003
52 days
2004
34 days
2005
75 days
2006
120 days
2007
49 days
2008
135 days
2009
45 days
2010
97 days
2011
193 days
2012
74 days
2013
99 days
2014
46 days
2015
36 days
2016
47 days
2017
70 days
2018
137 days
2019
67 days
2020
106 days
2021
41 days
2022
28 days
2023
6 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 Balmorhea falls on 29 March and the median first autumn frost on 8 November, which leaves a median of 229 days between them.
In 1977 to 2020 the median growing season was 230 days. That is 5 days more than in 1924 to 1958.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
Frost dates and growing season at Balmorhea
Measure
Median, all years
Earliest period (1924 to 1958)
Recent period (1977 to 2020)
Recent against earliest
Fitted trend
Last spring frost
29 March
2 April
29 March
4 days earlier
-1.0 days per decade
First autumn frost
8 November
8 November
10 November
2 days later
-0.7 days per decade
Growing days
229 days
225 days
230 days
5 days more
+0.3 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
85 years, 1924 to 2020
A day with at least 41.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 95.0 mm (3.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Balmorhea: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
41.7 mm (1.6 in)
5 years
57.8 mm (2.3 in)
10 years
67.6 mm (2.7 in)
25 years
79.3 mm (3.1 in)
50 years
87.4 mm (3.4 in)
100 years
95.0 mm (3.7 in)
Longer than the 85 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, 85 years of values from 1924 to 2020.
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: 104.9 mm (4.1 in) in 1973; 85.6 mm (3.4 in) in 1972; 83.8 mm (3.3 in) in 1930.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Balmorhea, at 2005. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 2005 ran 0.5 C (0.9 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Balmorhea, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
2005
-0.5
-0.9
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Balmorhea standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Balmorhea 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.