Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Bastorp. 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 Bastorp, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
9.9 C (49.8 F)
-30.5 C (-22.9 F)
n/a
n/a
Feb
10.9 C (51.6 F)
-34.5 C (-30.1 F)
n/a
n/a
Mar
16.2 C (61.2 F)
-25.1 C (-13.2 F)
n/a
n/a
Apr
26.2 C (79.2 F)
-15.8 C (3.6 F)
n/a
n/a
May
27.1 C (80.8 F)
-5.2 C (22.6 F)
n/a
n/a
Jun
31.2 C (88.2 F)
-1.6 C (29.1 F)
n/a
n/a
Jul
32.4 C (90.3 F)
2.0 C (35.6 F)
n/a
n/a
Aug
33.9 C (93.0 F)
-1.5 C (29.3 F)
n/a
n/a
Sep
25.0 C (77.0 F)
-6.0 C (21.2 F)
n/a
n/a
Oct
19.1 C (66.4 F)
-11.5 C (11.3 F)
n/a
n/a
Nov
13.2 C (55.8 F)
-23.8 C (-10.8 F)
n/a
n/a
Dec
10.4 C (50.7 F)
-27.5 C (-17.5 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bastorp still stand. 1989 holds the most, with 83.
Standing records at Bastorp by the year they were set
Year set
Standing records
1965
52
1966
50
1967
26
1968
64
1969
48
1970
39
1971
56
1972
28
1973
55
1974
40
1975
53
1976
49
1977
51
1978
62
1979
43
1980
44
1981
47
1982
37
1983
43
1984
37
1985
47
1986
50
1987
42
1988
40
1989
83
1990
67
1991
36
1992
52
1993
41
1994
34
1995
47
1996
1
Wettest Day of Each Month
Jun: 72.9 mm (2.9 in)
The wettest day on record for each calendar month at Bastorp. The most was 72.9 mm (2.9 in) on 29 June 1981.
Record daily precipitation for each month at Bastorp
Month
Record daily precipitation (mm)
Date
Jan
30.1 mm (1.2 in)
31 January 1990
Feb
26.6 mm (1.0 in)
4 February 1989
Mar
30.6 mm (1.2 in)
16 March 1977
Apr
23.0 mm (0.9 in)
26 April 1977
May
35.8 mm (1.4 in)
29 May 1988
Jun
72.9 mm (2.9 in)
29 June 1981
Jul
38.0 mm (1.5 in)
9 July 1987
Aug
46.8 mm (1.8 in)
12 August 1983
Sep
65.7 mm (2.6 in)
15 September 1994
Oct
39.9 mm (1.6 in)
31 October 1968
Nov
29.8 mm (1.2 in)
9 November 1969
Dec
26.5 mm (1.0 in)
5 December 1986
Period of Record Coverage
1965 to 1996
Complete yearUnder 90 percent of days
32 years of record at Bastorp, 1965 to 1996. 2 years have data for under 90 percent of days and are left out of rankings: 1995, 1996.
Cooler than the station meanWarmer than the station mean
One stripe for each of 21 complete years at Bastorp, 1965 to 1993. Blue stripes are years cooler than the station's own mean of 5.5 C (42.0 F); red stripes are warmer. The coolest year was 1985, at 3.7 C (38.6 F), and the warmest was 1990, at 7.4 C (45.4 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Bastorp as warming stripes, 1965 to 1993
Year
Annual mean temperature
Difference from the station mean
1965
4.3 C
-1.21 C
1966
4.0 C
-1.51 C
1968
4.7 C
-0.83 C
1969
4.6 C
-0.96 C
1972
5.8 C
+0.30 C
1973
5.7 C
+0.19 C
1974
6.5 C
+0.93 C
1975
7.1 C
+1.57 C
1977
5.2 C
-0.38 C
1979
4.2 C
-1.34 C
1980
4.7 C
-0.84 C
1981
4.6 C
-0.96 C
1982
6.0 C
+0.43 C
1983
6.4 C
+0.88 C
1984
6.0 C
+0.51 C
1985
3.7 C
-1.87 C
1988
6.1 C
+0.57 C
1989
7.2 C
+1.70 C
1990
7.4 C
+1.91 C
1991
6.4 C
+0.87 C
1993
5.6 C
+0.06 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
1965 to 1996
Yearly extremes at Bastorp: 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)
1975
28.5 C (83.3 F)
32
Coldest night (TNn)
-34.5 C (-30.1 F)
1966
-23.0 C (-9.3 F)
32
Wettest day (Rx1day)
72.9 mm (2.9 in)
1981
30.2 mm (1.2 in)
32
Wettest five days (Rx5day)
110.7 mm (4.4 in)
1968
67.5 mm (2.7 in)
32
Longest dry spell (CDD)
59 days
1974
23 days
32
Hottest day (TXx)
The hottest day of the year at Bastorp, 1965 to 1996. The record is 33.9 C (93.0 F) in 1975, marked on the chart; the median year is 28.5 C (83.3 F).
Hottest day (TXx) at Bastorp by year
Year
Hottest day (TXx)
1965
24.8 C (76.6 F)
1966
28.3 C (82.9 F)
1967
26.7 C (80.1 F)
1968
28.4 C (83.1 F)
1969
30.3 C (86.5 F)
1970
31.2 C (88.2 F)
1971
30.3 C (86.5 F)
1972
30.0 C (86.0 F)
1973
29.4 C (84.9 F)
1974
25.1 C (77.2 F)
1975
33.9 C (93.0 F)
1976
28.1 C (82.6 F)
1977
28.9 C (84.0 F)
1978
27.6 C (81.7 F)
1979
28.6 C (83.5 F)
1980
29.5 C (85.1 F)
1981
26.6 C (79.9 F)
1982
33.0 C (91.4 F)
1983
29.5 C (85.1 F)
1984
26.5 C (79.7 F)
1985
26.1 C (79.0 F)
1986
28.0 C (82.4 F)
1987
24.4 C (75.9 F)
1988
28.8 C (83.8 F)
1989
29.9 C (85.8 F)
1990
27.0 C (80.6 F)
1991
31.1 C (88.0 F)
1992
27.3 C (81.1 F)
1993
26.2 C (79.2 F)
1994
32.4 C (90.3 F)
1995
29.2 C (84.6 F)
1996
2.5 C (36.5 F)
Coldest night (TNn)
The coldest night of the year at Bastorp, 1965 to 1996. The record is -34.5 C (-30.1 F) in 1966, marked on the chart; the median year is -23.0 C (-9.3 F).
Coldest night (TNn) at Bastorp by year
Year
Coldest night (TNn)
1965
-27.5 C (-17.5 F)
1966
-34.5 C (-30.1 F)
1967
-22.8 C (-9.0 F)
1968
-27.0 C (-16.6 F)
1969
-30.3 C (-22.5 F)
1970
-30.2 C (-22.4 F)
1971
-22.3 C (-8.1 F)
1972
-14.2 C (6.4 F)
1973
-20.5 C (-4.9 F)
1974
-13.2 C (8.2 F)
1975
-15.1 C (4.8 F)
1976
-23.1 C (-9.6 F)
1977
-22.4 C (-8.3 F)
1978
-25.1 C (-13.2 F)
1979
-28.1 C (-18.6 F)
1980
-25.0 C (-13.0 F)
1981
-25.1 C (-13.2 F)
1982
-30.5 C (-22.9 F)
1983
-17.5 C (0.5 F)
1984
-25.5 C (-13.9 F)
1985
-30.0 C (-22.0 F)
1986
-27.1 C (-16.8 F)
1987
-28.0 C (-18.4 F)
1988
-19.9 C (-3.8 F)
1989
-18.2 C (-0.8 F)
1990
-14.8 C (5.4 F)
1991
-22.6 C (-8.7 F)
1992
-14.8 C (5.4 F)
1993
-20.5 C (-4.9 F)
1994
-26.7 C (-16.1 F)
1995
-20.9 C (-5.6 F)
1996
-21.0 C (-5.8 F)
Wettest day (Rx1day)
The wettest day of the year at Bastorp, 1965 to 1996. The record is 72.9 mm (2.9 in) in 1981, marked on the chart; the median year is 30.2 mm (1.2 in).
Wettest day (Rx1day) at Bastorp by year
Year
Wettest day (Rx1day)
1965
27.2 mm (1.1 in)
1966
24.2 mm (1.0 in)
1967
30.0 mm (1.2 in)
1968
39.9 mm (1.6 in)
1969
29.8 mm (1.2 in)
1970
25.7 mm (1.0 in)
1971
23.0 mm (0.9 in)
1972
30.3 mm (1.2 in)
1973
34.7 mm (1.4 in)
1974
30.3 mm (1.2 in)
1975
33.2 mm (1.3 in)
1976
29.5 mm (1.2 in)
1977
35.5 mm (1.4 in)
1978
17.8 mm (0.7 in)
1979
27.0 mm (1.1 in)
1980
31.4 mm (1.2 in)
1981
72.9 mm (2.9 in)
1982
29.5 mm (1.2 in)
1983
46.8 mm (1.8 in)
1984
28.3 mm (1.1 in)
1985
43.6 mm (1.7 in)
1986
37.1 mm (1.5 in)
1987
42.1 mm (1.7 in)
1988
53.2 mm (2.1 in)
1989
26.6 mm (1.0 in)
1990
30.1 mm (1.2 in)
1991
28.2 mm (1.1 in)
1992
21.6 mm (0.9 in)
1993
30.6 mm (1.2 in)
1994
65.7 mm (2.6 in)
1995
33.2 mm (1.3 in)
1996
5.4 mm (0.21 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bastorp, 1965 to 1996. The record is 110.7 mm (4.4 in) in 1968, marked on the chart; the median year is 67.5 mm (2.7 in).
Wettest five days (Rx5day) at Bastorp by year
Year
Wettest five days (Rx5day)
1965
69.9 mm (2.8 in)
1966
49.6 mm (2.0 in)
1967
68.9 mm (2.7 in)
1968
110.7 mm (4.4 in)
1969
71.0 mm (2.8 in)
1970
58.7 mm (2.3 in)
1971
48.1 mm (1.9 in)
1972
79.7 mm (3.1 in)
1973
64.7 mm (2.5 in)
1974
72.9 mm (2.9 in)
1975
60.3 mm (2.4 in)
1976
68.6 mm (2.7 in)
1977
88.4 mm (3.5 in)
1978
44.5 mm (1.8 in)
1979
53.7 mm (2.1 in)
1980
55.4 mm (2.2 in)
1981
94.1 mm (3.7 in)
1982
82.0 mm (3.2 in)
1983
56.0 mm (2.2 in)
1984
51.1 mm (2.0 in)
1985
93.4 mm (3.7 in)
1986
55.4 mm (2.2 in)
1987
92.6 mm (3.6 in)
1988
74.9 mm (2.9 in)
1989
46.3 mm (1.8 in)
1990
58.6 mm (2.3 in)
1991
74.5 mm (2.9 in)
1992
52.6 mm (2.1 in)
1993
77.8 mm (3.1 in)
1994
86.5 mm (3.4 in)
1995
66.4 mm (2.6 in)
1996
13.3 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bastorp, 1965 to 1996. The record is 59 days in 1974, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Bastorp by year
Year
Longest dry spell (CDD)
1965
21 days
1966
20 days
1967
15 days
1968
21 days
1969
23 days
1970
24 days
1971
28 days
1972
19 days
1973
19 days
1974
59 days
1975
39 days
1976
28 days
1977
23 days
1978
23 days
1979
15 days
1980
28 days
1981
25 days
1982
24 days
1983
17 days
1984
16 days
1985
20 days
1986
21 days
1987
29 days
1988
23 days
1989
30 days
1990
16 days
1991
30 days
1992
29 days
1993
21 days
1994
29 days
1995
18 days
1996
8 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
21 years with a frost
Across 21 years with a frost, the median last spring frost at Bastorp falls on 20 May and the median first autumn frost on 18 September, which leaves a median of 120 days between them.
Frost dates and growing season at Bastorp
Measure
Median, all years
Earliest period
Recent period (1965 to 1993)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
20 May
n/a
n/a
First autumn frost
18 September
n/a
18 September
n/a
n/a
Growing days
120 days
n/a
120 days
n/a
n/a
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
31 years, 1965 to 1995
A day with at least 30.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 85.3 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Bastorp: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
30.7 mm (1.2 in)
5 years
39.9 mm (1.6 in)
10 years
47.7 mm (1.9 in)
25 years
60.1 mm (2.4 in)
50 years
71.6 mm (2.8 in)
Longer than the 31 years of record
100 years
85.3 mm (3.4 in)
Longer than the 31 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, 31 years of values from 1965 to 1995.
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: 72.9 mm (2.9 in) in 1981; 65.7 mm (2.6 in) in 1994; 53.2 mm (2.1 in) in 1988.
Download the Data
Data for Bastorp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bastorp 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.