Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Pehuajo Aero. 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 Pehuajo Aero, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
41.2 C (106.2 F)
2.1 C (35.8 F)
n/a
n/a
Feb
40.6 C (105.1 F)
2.8 C (37.0 F)
n/a
n/a
Mar
39.7 C (103.5 F)
-0.5 C (31.1 F)
n/a
n/a
Apr
35.4 C (95.7 F)
-2.7 C (27.1 F)
n/a
n/a
May
30.6 C (87.1 F)
-5.9 C (21.4 F)
n/a
n/a
Jun
28.0 C (82.4 F)
-9.6 C (14.7 F)
n/a
n/a
Jul
25.9 C (78.6 F)
-7.5 C (18.5 F)
n/a
n/a
Aug
31.7 C (89.1 F)
-7.8 C (18.0 F)
n/a
n/a
Sep
32.4 C (90.3 F)
-6.8 C (19.8 F)
n/a
n/a
Oct
35.7 C (96.3 F)
-3.6 C (25.5 F)
n/a
n/a
Nov
37.6 C (99.7 F)
-1.8 C (28.8 F)
n/a
n/a
Dec
43.4 C (110.1 F)
1.6 C (34.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Pehuajo Aero still stand. 1965 holds the most, with 67.
Standing records at Pehuajo Aero by the year they were set
Year set
Standing records
1959
37
1960
51
1961
36
1962
46
1963
34
1964
35
1965
67
1966
28
1967
29
1968
39
1969
19
1970
49
1971
58
1972
36
1973
21
1974
22
1975
25
1976
41
1977
33
1978
25
1979
16
1980
48
1981
27
1982
29
1983
24
1984
29
1985
17
1986
24
1987
23
1988
16
1989
14
1990
14
1991
24
1992
33
1993
28
1994
18
1995
25
1996
31
1997
21
1998
17
1999
21
2000
18
2001
44
2002
23
2003
15
2004
7
2019
3
2020
10
2021
17
2022
18
2023
43
2024
25
2025
11
All-Time Record Progression
1 new records
1 all-time records were set at Pehuajo Aero between 26 January 1990 and 26 January 1990. Each dot is a new record.
When Pehuajo Aero set new all-time records
Date
Kind
Detail
1990-01-26
Record high minimum temperature
Record high minimum temperature 27.5 C (81.5 F)
Wettest Day of Each Month
Jan: 210.1 mm (8.3 in)
The wettest day on record for each calendar month at Pehuajo Aero. The most was 210.1 mm (8.3 in) on 14 January 1983.
Record daily precipitation for each month at Pehuajo Aero
Month
Record daily precipitation (mm)
Date
Jan
210.1 mm (8.3 in)
14 January 1983
Feb
83.1 mm (3.3 in)
26 February 1984
Mar
199.9 mm (7.9 in)
7 March 1992
Apr
134.1 mm (5.3 in)
8 April 1995
May
70.1 mm (2.8 in)
14 May 1980
Jun
59.9 mm (2.4 in)
3 June 1991
Jul
113.0 mm (4.4 in)
17 July 1990
Aug
85.1 mm (3.4 in)
8 August 1994
Sep
49.0 mm (1.9 in)
26 September 1978
Oct
93.0 mm (3.7 in)
26 October 2022
Nov
70.1 mm (2.8 in)
19 November 1978
Dec
144.0 mm (5.7 in)
18 December 1982
Period of Record Coverage
1959 to 2025
Complete yearUnder 90 percent of days
54 years of record at Pehuajo Aero, 1959 to 2025. 11 years have data for under 90 percent of days and are left out of rankings: 1967, 1985, 2004, 2017, 2019, 2020, 2021, 2022 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 38 complete years at Pehuajo Aero, 1960 to 2003. Blue stripes are years cooler than the station's own mean of 15.8 C (60.4 F); red stripes are warmer. The coolest year was 1964, at 14.9 C (58.7 F), and the warmest was 1989, at 16.5 C (61.7 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at Pehuajo Aero as warming stripes, 1960 to 2003
Year
Annual mean temperature
Difference from the station mean
1960
15.9 C
+0.13 C
1961
16.0 C
+0.28 C
1962
15.6 C
-0.16 C
1963
15.4 C
-0.36 C
1964
14.9 C
-0.91 C
1965
15.8 C
+0.05 C
1966
15.4 C
-0.41 C
1968
16.0 C
+0.26 C
1969
16.1 C
+0.37 C
1970
16.2 C
+0.43 C
1971
15.5 C
-0.25 C
1972
15.8 C
+0.05 C
1973
15.8 C
+0.06 C
1975
16.0 C
+0.22 C
1976
15.2 C
-0.59 C
1977
16.1 C
+0.35 C
1978
15.9 C
+0.13 C
1979
15.8 C
+0.04 C
1980
16.5 C
+0.69 C
1981
16.0 C
+0.27 C
1982
15.9 C
+0.15 C
1983
15.3 C
-0.43 C
1984
15.2 C
-0.55 C
1986
16.2 C
+0.40 C
1987
16.4 C
+0.65 C
1989
16.5 C
+0.74 C
1992
14.9 C
-0.88 C
1993
15.4 C
-0.34 C
1994
15.6 C
-0.20 C
1995
15.3 C
-0.46 C
1996
15.5 C
-0.22 C
1997
15.9 C
+0.12 C
1998
15.5 C
-0.29 C
1999
15.5 C
-0.28 C
2000
15.6 C
-0.17 C
2001
16.4 C
+0.63 C
2002
16.1 C
+0.36 C
2003
16.0 C
+0.23 C
The fitted trend in annual mean temperature here over 1960 to 2003 is 0.01 C (-0.09 to 0.12) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.02 F (-0.17 to 0.21) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Pehuajo Aero
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.01 C (-0.09 to 0.12) per decade
0.02 F (-0.17 to 0.21) per decade
1960 to 2003
38
Not clearly different from zero
Mean daily maximum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.8 to -0.2) per decade
1960 to 2003
38
Fall
Mean daily minimum
0.3 C (0.1 to 0.5) per decade
0.6 F (0.2 to 0.9) per decade
1960 to 2003
38
Rise
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
1959 to 2025
Yearly extremes at Pehuajo Aero: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.4 C (110.1 F)
1971
37.5 C (99.4 F)
54
Coldest night (TNn)
-9.6 C (14.7 F)
1967
-5.4 C (22.3 F)
54
Wettest day (Rx1day)
210.1 mm (8.3 in)
1983
59.9 mm (2.4 in)
33
Wettest five days (Rx5day)
279.1 mm (11.0 in)
1983
95.0 mm (3.7 in)
27
Longest dry spell (CDD)
50 days
1981
4 days
32
Hottest day (TXx)
The hottest day of the year at Pehuajo Aero, 1959 to 2025. The record is 43.4 C (110.1 F) in 1971, marked on the chart; the median year is 37.5 C (99.4 F).
Hottest day (TXx) at Pehuajo Aero by year
Year
Hottest day (TXx)
1959
36.7 C (98.1 F)
1960
40.6 C (105.1 F)
1961
40.0 C (104.0 F)
1962
38.4 C (101.1 F)
1963
39.2 C (102.6 F)
1964
36.9 C (98.4 F)
1965
39.3 C (102.7 F)
1966
37.5 C (99.5 F)
1967
37.9 C (100.2 F)
1968
41.1 C (106.0 F)
1969
41.2 C (106.2 F)
1970
39.5 C (103.1 F)
1971
43.4 C (110.1 F)
1972
39.1 C (102.4 F)
1973
36.1 C (97.0 F)
1974
33.4 C (92.1 F)
1975
40.6 C (105.1 F)
1976
38.6 C (101.5 F)
1977
36.5 C (97.7 F)
1978
35.4 C (95.7 F)
1979
36.0 C (96.8 F)
1980
38.7 C (101.7 F)
1981
37.6 C (99.7 F)
1982
38.9 C (102.0 F)
1983
37.6 C (99.7 F)
1984
34.7 C (94.5 F)
1985
32.3 C (90.1 F)
1986
36.8 C (98.2 F)
1987
36.2 C (97.2 F)
1988
36.6 C (97.9 F)
1989
38.6 C (101.5 F)
1990
38.1 C (100.6 F)
1991
35.9 C (96.6 F)
1992
35.0 C (95.0 F)
1993
34.7 C (94.5 F)
1994
36.4 C (97.5 F)
1995
38.6 C (101.5 F)
1996
36.4 C (97.5 F)
1997
35.0 C (95.0 F)
1998
34.0 C (93.2 F)
1999
34.0 C (93.2 F)
2000
34.4 C (93.9 F)
2001
36.6 C (97.9 F)
2002
35.0 C (95.0 F)
2003
37.5 C (99.5 F)
2004
35.0 C (95.0 F)
2017
26.9 C (80.4 F)
2019
37.4 C (99.3 F)
2020
37.8 C (100.0 F)
2021
37.4 C (99.3 F)
2022
41.1 C (106.0 F)
2023
40.6 C (105.1 F)
2024
39.1 C (102.4 F)
2025
38.7 C (101.7 F)
Coldest night (TNn)
The coldest night of the year at Pehuajo Aero, 1959 to 2025. The record is -9.6 C (14.7 F) in 1967, marked on the chart; the median year is -5.4 C (22.3 F).
Coldest night (TNn) at Pehuajo Aero by year
Year
Coldest night (TNn)
1959
-4.6 C (23.7 F)
1960
-6.5 C (20.3 F)
1961
-8.4 C (16.9 F)
1962
-7.0 C (19.4 F)
1963
-5.9 C (21.4 F)
1964
-5.1 C (22.8 F)
1965
-5.4 C (22.3 F)
1966
-6.3 C (20.7 F)
1967
-9.6 C (14.7 F)
1968
-5.9 C (21.4 F)
1969
-5.0 C (23.0 F)
1970
-7.2 C (19.0 F)
1971
-5.8 C (21.6 F)
1972
-6.4 C (20.5 F)
1973
-1.3 C (29.7 F)
1974
-4.2 C (24.4 F)
1975
-5.3 C (22.5 F)
1976
-7.3 C (18.9 F)
1977
-6.2 C (20.8 F)
1978
-4.8 C (23.4 F)
1979
-5.9 C (21.4 F)
1980
-5.9 C (21.4 F)
1981
-4.3 C (24.3 F)
1982
-6.2 C (20.8 F)
1983
-7.8 C (18.0 F)
1984
-5.0 C (23.0 F)
1985
-5.5 C (22.1 F)
1986
-2.1 C (28.2 F)
1987
-1.3 C (29.7 F)
1988
-6.1 C (21.0 F)
1989
-4.6 C (23.7 F)
1990
-4.5 C (23.9 F)
1991
-7.1 C (19.2 F)
1992
-6.6 C (20.1 F)
1993
-5.5 C (22.1 F)
1994
-5.5 C (22.1 F)
1995
-7.5 C (18.5 F)
1996
-5.4 C (22.3 F)
1997
-4.3 C (24.3 F)
1998
-6.8 C (19.8 F)
1999
-4.0 C (24.8 F)
2000
-3.2 C (26.2 F)
2001
-2.0 C (28.4 F)
2002
-6.3 C (20.7 F)
2003
-4.4 C (24.1 F)
2004
-1.9 C (28.6 F)
2017
17.6 C (63.7 F)
2019
7.1 C (44.8 F)
2020
-3.6 C (25.5 F)
2021
-5.0 C (23.0 F)
2022
-3.2 C (26.2 F)
2023
-4.5 C (23.9 F)
2024
-6.7 C (19.9 F)
2025
-5.1 C (22.8 F)
Wettest day (Rx1day)
The wettest day of the year at Pehuajo Aero, 1959 to 2025. The record is 210.1 mm (8.3 in) in 1983, marked on the chart; the median year is 59.9 mm (2.4 in).
Wettest day (Rx1day) at Pehuajo Aero by year
Year
Wettest day (Rx1day)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
36.1 mm (1.4 in)
1974
59.9 mm (2.4 in)
1975
59.9 mm (2.4 in)
1976
49.0 mm (1.9 in)
1977
70.1 mm (2.8 in)
1978
80.0 mm (3.1 in)
1979
80.0 mm (3.1 in)
1980
70.1 mm (2.8 in)
1981
70.1 mm (2.8 in)
1982
144.0 mm (5.7 in)
1983
210.1 mm (8.3 in)
1984
83.1 mm (3.3 in)
1985
0.0 mm (0.00 in)
1986
0.0 mm (0.00 in)
1987
56.9 mm (2.2 in)
1988
65.0 mm (2.6 in)
1989
46.0 mm (1.8 in)
1990
113.0 mm (4.4 in)
1991
59.9 mm (2.4 in)
1992
199.9 mm (7.9 in)
1993
35.1 mm (1.4 in)
1994
122.9 mm (4.8 in)
1995
134.1 mm (5.3 in)
1996
65.0 mm (2.6 in)
1997
50.0 mm (2.0 in)
1998
n/a
1999
n/a
2000
n/a
2001
n/a
2002
n/a
2003
n/a
2004
n/a
2017
11.9 mm (0.5 in)
2019
15.0 mm (0.6 in)
2020
53.1 mm (2.1 in)
2021
43.9 mm (1.7 in)
2022
102.1 mm (4.0 in)
2023
49.0 mm (1.9 in)
2024
62.0 mm (2.4 in)
2025
56.9 mm (2.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Pehuajo Aero, 1959 to 2025. The record is 279.1 mm (11.0 in) in 1983, marked on the chart; the median year is 95.0 mm (3.7 in).
Wettest five days (Rx5day) at Pehuajo Aero by year
Year
Wettest five days (Rx5day)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
39.4 mm (1.6 in)
1974
170.8 mm (6.7 in)
1975
89.2 mm (3.5 in)
1976
120.2 mm (4.7 in)
1977
101.1 mm (4.0 in)
1978
139.7 mm (5.5 in)
1979
95.0 mm (3.7 in)
1980
83.3 mm (3.3 in)
1981
78.0 mm (3.1 in)
1982
144.0 mm (5.7 in)
1983
279.1 mm (11.0 in)
1984
176.3 mm (6.9 in)
1985
n/a
1986
n/a
1987
125.0 mm (4.9 in)
1988
111.8 mm (4.4 in)
1989
54.1 mm (2.1 in)
1990
41.9 mm (1.6 in)
1991
12.7 mm (0.5 in)
1992
n/a
1993
47.0 mm (1.9 in)
1994
99.8 mm (3.9 in)
1995
196.1 mm (7.7 in)
1996
49.1 mm (1.9 in)
1997
n/a
1998
n/a
1999
n/a
2000
n/a
2001
n/a
2002
n/a
2003
n/a
2004
n/a
2017
n/a
2019
16.3 mm (0.6 in)
2020
85.7 mm (3.4 in)
2021
55.9 mm (2.2 in)
2022
257.0 mm (10.1 in)
2023
63.4 mm (2.5 in)
2024
104.9 mm (4.1 in)
2025
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Pehuajo Aero, 1959 to 2025. The record is 50 days in 1981, marked on the chart; the median year is 4 days.
Longest dry spell (CDD) at Pehuajo Aero by year
Year
Longest dry spell (CDD)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
10 days
1974
17 days
1975
5 days
1976
7 days
1977
17 days
1978
17 days
1979
17 days
1980
25 days
1981
50 days
1982
6 days
1983
7 days
1984
6 days
1985
1 day
1986
1 day
1987
2 days
1988
2 days
1989
4 days
1990
2 days
1991
2 days
1992
3 days
1993
2 days
1994
2 days
1995
2 days
1996
2 days
1997
4 days
1998
n/a
1999
n/a
2000
n/a
2001
n/a
2002
n/a
2003
n/a
2004
n/a
2017
n/a
2019
2 days
2020
3 days
2021
4 days
2022
4 days
2023
4 days
2024
3 days
2025
2 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
38 years with a frost
Across 38 years with a frost, the median last spring frost at Pehuajo Aero falls on 19 September and the median first autumn frost on 25 May, which leaves a median of 241 days between them.
Fitted over all years, the growing season changes by +13.6 days per decade at this station.
Frost dates and growing season at Pehuajo Aero
Measure
Median, all years
Earliest period
Recent period (1969 to 2003)
Recent against earliest
Fitted trend
Last spring frost
19 September
n/a
19 September
n/a
-4.1 days per decade
First autumn frost
25 May
n/a
28 May
n/a
+9.5 days per decade
Growing days
241 days
n/a
248 days
n/a
+13.6 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.
Download the Data
Data for Pehuajo Aero standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Pehuajo Aero 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.