Record envelope, standing records and threshold days for Julian Wynola (USC00044418), California, United States, with 40 years of record.
Key Facts for Julian Wynola
Julian Wynola (USC00044418) is a weather station in California, United States at 33.10 latitude and -116.65 longitude, 1,113 m (3,650 ft) above sea level.
The station reports from 1949 to 1988, 40 years of record.
1,464 records set at Julian Wynola still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Julian Wynola tied a daily record high maximum temperature of 37.8 C (100.0 F) on 26 July 1988.
About the Station
Location: California, United States, 33.10 latitude, -116.65 longitude.
Elevation: 1,113 m (3,650 ft).
Period of record: 1949 to 1988, 40 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 Julian Wynola. 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 Julian Wynola, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-11.7 C (10.9 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-11.1 C (12.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-12.2 C (10.0 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-7.2 C (19.0 F)
n/a
n/a
May
38.9 C (102.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
-2.8 C (27.0 F)
n/a
n/a
Aug
42.8 C (109.0 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
38.3 C (100.9 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
29.4 C (84.9 F)
-11.7 C (10.9 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-12.8 C (9.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Julian Wynola still stand. 1955 holds the most, with 72.
Standing records at Julian Wynola by the year they were set
Year set
Standing records
1949
19
1950
56
1951
58
1952
43
1953
69
1954
60
1955
72
1956
55
1957
43
1958
23
1959
24
1960
34
1961
32
1962
50
1963
29
1964
39
1965
25
1966
26
1967
36
1968
27
1969
27
1970
28
1971
37
1972
41
1973
23
1974
25
1975
27
1976
35
1977
31
1978
30
1979
28
1980
58
1981
27
1982
20
1983
22
1984
39
1985
39
1986
30
1987
52
1988
25
All-Time Record Progression
3 new records
3 all-time records were set at Julian Wynola between 21 February 1980 and 25 August 1985. Each dot is a new record.
When Julian Wynola set new all-time records
Date
Kind
Detail
1980-02-21
Record daily precipitation
Record daily precipitation 168.4 mm (6.6 in)
1985-07-03
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1985-08-25
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
Wettest Day of Each Month
Feb: 168.4 mm (6.6 in)
The wettest day on record for each calendar month at Julian Wynola. The most was 168.4 mm (6.6 in) on 21 February 1980.
Record daily precipitation for each month at Julian Wynola
Month
Record daily precipitation (mm)
Date
Jan
107.4 mm (4.2 in)
29 January 1980
Feb
168.4 mm (6.6 in)
21 February 1980
Mar
73.7 mm (2.9 in)
16 March 1986
Apr
56.6 mm (2.2 in)
3 April 1958
May
41.7 mm (1.6 in)
9 May 1977
Jun
19.6 mm (0.8 in)
10 June 1957
Jul
34.0 mm (1.3 in)
30 July 1966
Aug
48.3 mm (1.9 in)
28 August 1951
Sep
86.4 mm (3.4 in)
10 September 1976
Oct
55.1 mm (2.2 in)
20 October 1979
Nov
113.5 mm (4.5 in)
23 November 1965
Dec
113.0 mm (4.4 in)
5 December 1966
Period of Record Coverage
1949 to 1988
Complete yearUnder 90 percent of days
40 years of record at Julian Wynola, 1949 to 1988. 4 years have data for under 90 percent of days and are left out of rankings: 1949, 1973, 1979, 1988.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Julian Wynola, 1950 to 1987. Blue stripes are years cooler than the station's own mean of 13.4 C (56.2 F); red stripes are warmer. The coolest year was 1955, at 11.5 C (52.7 F), and the warmest was 1981, at 15.3 C (59.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Julian Wynola as warming stripes, 1950 to 1987
Year
Annual mean temperature
Difference from the station mean
1950
12.5 C
-0.96 C
1952
11.6 C
-1.82 C
1953
11.8 C
-1.65 C
1954
12.2 C
-1.23 C
1955
11.5 C
-1.91 C
1956
11.8 C
-1.62 C
1957
12.2 C
-1.28 C
1958
13.5 C
+0.02 C
1959
14.3 C
+0.87 C
1960
13.9 C
+0.44 C
1961
14.0 C
+0.58 C
1962
13.9 C
+0.51 C
1963
13.6 C
+0.16 C
1964
13.1 C
-0.34 C
1965
13.2 C
-0.22 C
1966
14.0 C
+0.56 C
1968
13.7 C
+0.27 C
1969
13.7 C
+0.27 C
1970
13.8 C
+0.34 C
1971
12.8 C
-0.68 C
1972
13.7 C
+0.29 C
1974
13.6 C
+0.19 C
1975
13.1 C
-0.36 C
1976
14.0 C
+0.55 C
1980
14.4 C
+0.92 C
1981
15.3 C
+1.82 C
1982
13.4 C
-0.08 C
1984
15.0 C
+1.57 C
1986
15.0 C
+1.52 C
1987
14.6 C
+1.17 C
The annual mean temperature here has risen by 0.7 C (0.5 to 0.9) per decade over 1950 to 1987. In Fahrenheit: 1.3 F (0.8 to 1.7) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Julian Wynola
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.7 C (0.5 to 0.9) per decade
1.3 F (0.8 to 1.7) per decade
1950 to 1987
30
Rise
Mean daily maximum
0.4 C (0.1 to 0.6) per decade
0.7 F (0.2 to 1.1) per decade
1950 to 1987
30
Rise
Mean daily minimum
1.0 C (0.7 to 1.4) per decade
1.9 F (1.2 to 2.6) per decade
1950 to 1987
30
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
1949 to 1988
Yearly extremes at Julian Wynola: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1985
38.9 C (102.0 F)
40
Coldest night (TNn)
-12.8 C (9.0 F)
1968
-6.9 C (19.5 F)
40
Wettest day (Rx1day)
168.4 mm (6.6 in)
1980
59.5 mm (2.3 in)
40
Wettest five days (Rx5day)
377.9 mm (14.9 in)
1980
112.4 mm (4.4 in)
40
Longest dry spell (CDD)
146 days
1956
70 days
40
Hottest day (TXx)
The hottest day of the year at Julian Wynola, 1949 to 1988. The record is 42.8 C (109.0 F) in 1985, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Julian Wynola by year
Year
Hottest day (TXx)
1949
37.8 C (100.0 F)
1950
38.3 C (100.9 F)
1951
36.1 C (97.0 F)
1952
36.1 C (97.0 F)
1953
36.7 C (98.1 F)
1954
37.8 C (100.0 F)
1955
38.9 C (102.0 F)
1956
37.8 C (100.0 F)
1957
36.7 C (98.1 F)
1958
36.7 C (98.1 F)
1959
38.9 C (102.0 F)
1960
40.6 C (105.1 F)
1961
38.9 C (102.0 F)
1962
38.9 C (102.0 F)
1963
38.3 C (100.9 F)
1964
36.7 C (98.1 F)
1965
37.8 C (100.0 F)
1966
36.7 C (98.1 F)
1967
37.8 C (100.0 F)
1968
37.8 C (100.0 F)
1969
39.4 C (102.9 F)
1970
38.9 C (102.0 F)
1971
40.0 C (104.0 F)
1972
39.4 C (102.9 F)
1973
38.3 C (100.9 F)
1974
39.4 C (102.9 F)
1975
38.9 C (102.0 F)
1976
38.3 C (100.9 F)
1977
37.8 C (100.0 F)
1978
38.9 C (102.0 F)
1979
38.9 C (102.0 F)
1980
38.9 C (102.0 F)
1981
40.0 C (104.0 F)
1982
39.4 C (102.9 F)
1983
39.4 C (102.9 F)
1984
38.9 C (102.0 F)
1985
42.8 C (109.0 F)
1986
39.4 C (102.9 F)
1987
39.4 C (102.9 F)
1988
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Julian Wynola, 1949 to 1988. The record is -12.8 C (9.0 F) in 1968, marked on the chart; the median year is -6.9 C (19.5 F).
Coldest night (TNn) at Julian Wynola by year
Year
Coldest night (TNn)
1949
-7.8 C (18.0 F)
1950
-10.0 C (14.0 F)
1951
-8.9 C (16.0 F)
1952
-8.3 C (17.1 F)
1953
-12.2 C (10.0 F)
1954
-10.6 C (12.9 F)
1955
-10.0 C (14.0 F)
1956
-11.1 C (12.0 F)
1957
-9.4 C (15.1 F)
1958
-11.7 C (10.9 F)
1959
-6.1 C (21.0 F)
1960
-11.7 C (10.9 F)
1961
-4.4 C (24.1 F)
1962
-7.2 C (19.0 F)
1963
-6.7 C (19.9 F)
1964
-6.1 C (21.0 F)
1965
-6.7 C (19.9 F)
1966
-6.7 C (19.9 F)
1967
-6.7 C (19.9 F)
1968
-12.8 C (9.0 F)
1969
-6.7 C (19.9 F)
1970
-5.0 C (23.0 F)
1971
-7.2 C (19.0 F)
1972
-6.7 C (19.9 F)
1973
-7.8 C (18.0 F)
1974
-6.7 C (19.9 F)
1975
-6.7 C (19.9 F)
1976
-6.7 C (19.9 F)
1977
-7.2 C (19.0 F)
1978
-7.2 C (19.0 F)
1979
-10.6 C (12.9 F)
1980
-2.8 C (27.0 F)
1981
-4.4 C (24.1 F)
1982
-5.6 C (21.9 F)
1983
-5.6 C (21.9 F)
1984
-5.0 C (23.0 F)
1985
-10.0 C (14.0 F)
1986
-6.7 C (19.9 F)
1987
-8.9 C (16.0 F)
1988
-3.3 C (26.1 F)
Wettest day (Rx1day)
The wettest day of the year at Julian Wynola, 1949 to 1988. The record is 168.4 mm (6.6 in) in 1980, marked on the chart; the median year is 59.5 mm (2.3 in).
Wettest day (Rx1day) at Julian Wynola by year
Year
Wettest day (Rx1day)
1949
69.9 mm (2.8 in)
1950
53.3 mm (2.1 in)
1951
48.3 mm (1.9 in)
1952
64.0 mm (2.5 in)
1953
44.5 mm (1.8 in)
1954
67.3 mm (2.6 in)
1955
50.3 mm (2.0 in)
1956
85.1 mm (3.4 in)
1957
50.8 mm (2.0 in)
1958
65.3 mm (2.6 in)
1959
60.5 mm (2.4 in)
1960
84.8 mm (3.3 in)
1961
46.2 mm (1.8 in)
1962
36.8 mm (1.4 in)
1963
70.1 mm (2.8 in)
1964
46.7 mm (1.8 in)
1965
113.5 mm (4.5 in)
1966
113.0 mm (4.4 in)
1967
57.2 mm (2.3 in)
1968
37.3 mm (1.5 in)
1969
93.2 mm (3.7 in)
1970
46.2 mm (1.8 in)
1971
45.7 mm (1.8 in)
1972
49.8 mm (2.0 in)
1973
61.0 mm (2.4 in)
1974
56.4 mm (2.2 in)
1975
43.2 mm (1.7 in)
1976
86.4 mm (3.4 in)
1977
47.5 mm (1.9 in)
1978
71.6 mm (2.8 in)
1979
68.6 mm (2.7 in)
1980
168.4 mm (6.6 in)
1981
73.7 mm (2.9 in)
1982
71.1 mm (2.8 in)
1983
58.4 mm (2.3 in)
1984
45.2 mm (1.8 in)
1985
83.6 mm (3.3 in)
1986
108.0 mm (4.3 in)
1987
50.0 mm (2.0 in)
1988
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Julian Wynola, 1949 to 1988. The record is 377.9 mm (14.9 in) in 1980, marked on the chart; the median year is 112.4 mm (4.4 in).
Wettest five days (Rx5day) at Julian Wynola by year
Year
Wettest five days (Rx5day)
1949
77.5 mm (3.1 in)
1950
79.5 mm (3.1 in)
1951
72.7 mm (2.9 in)
1952
118.4 mm (4.7 in)
1953
61.7 mm (2.4 in)
1954
211.1 mm (8.3 in)
1955
82.6 mm (3.3 in)
1956
150.1 mm (5.9 in)
1957
132.8 mm (5.2 in)
1958
153.2 mm (6.0 in)
1959
122.2 mm (4.8 in)
1960
86.3 mm (3.4 in)
1961
46.3 mm (1.8 in)
1962
95.2 mm (3.7 in)
1963
142.0 mm (5.6 in)
1964
108.9 mm (4.3 in)
1965
235.2 mm (9.3 in)
1966
321.6 mm (12.7 in)
1967
118.0 mm (4.6 in)
1968
39.8 mm (1.6 in)
1969
197.9 mm (7.8 in)
1970
115.9 mm (4.6 in)
1971
57.7 mm (2.3 in)
1972
87.9 mm (3.5 in)
1973
100.4 mm (4.0 in)
1974
167.9 mm (6.6 in)
1975
87.2 mm (3.4 in)
1976
172.1 mm (6.8 in)
1977
91.4 mm (3.6 in)
1978
206.0 mm (8.1 in)
1979
107.5 mm (4.2 in)
1980
377.9 mm (14.9 in)
1981
90.7 mm (3.6 in)
1982
134.1 mm (5.3 in)
1983
185.4 mm (7.3 in)
1984
88.0 mm (3.5 in)
1985
117.1 mm (4.6 in)
1986
120.0 mm (4.7 in)
1987
89.3 mm (3.5 in)
1988
100.6 mm (4.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Julian Wynola, 1949 to 1988. The record is 146 days in 1956, marked on the chart; the median year is 70 days.
Longest dry spell (CDD) at Julian Wynola by year
Year
Longest dry spell (CDD)
1949
46 days
1950
69 days
1951
64 days
1952
51 days
1953
125 days
1954
70 days
1955
82 days
1956
146 days
1957
122 days
1958
78 days
1959
65 days
1960
72 days
1961
88 days
1962
110 days
1963
54 days
1964
80 days
1965
55 days
1966
80 days
1967
50 days
1968
56 days
1969
54 days
1970
75 days
1971
62 days
1972
66 days
1973
66 days
1974
46 days
1975
80 days
1976
45 days
1977
70 days
1978
122 days
1979
74 days
1980
143 days
1981
78 days
1982
37 days
1983
96 days
1984
37 days
1985
60 days
1986
55 days
1987
60 days
1988
80 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
30 years with a frost
Across 30 years with a frost, the median last spring frost at Julian Wynola falls on 13 May and the median first autumn frost on 29 October, which leaves a median of 176 days between them.
Fitted over all years, the growing season changes by +40.4 days per decade at this station.
Frost dates and growing season at Julian Wynola
Measure
Median, all years
Earliest period
Recent period (1950 to 1987)
Recent against earliest
Fitted trend
Last spring frost
13 May
n/a
13 May
n/a
-14.1 days per decade
First autumn frost
29 October
n/a
29 October
n/a
+26.3 days per decade
Growing days
176 days
n/a
176 days
n/a
+40.4 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
38 years, 1950 to 1987
A day with at least 59.1 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 176.4 mm (6.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Julian Wynola: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
59.1 mm (2.3 in)
5 years
80.0 mm (3.1 in)
10 years
97.3 mm (3.8 in)
25 years
124.0 mm (4.9 in)
50 years
148.2 mm (5.8 in)
Longer than the 38 years of record
100 years
176.4 mm (6.9 in)
Longer than the 38 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, 38 years of values from 1950 to 1987.
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: 168.4 mm (6.6 in) in 1980; 113.5 mm (4.5 in) in 1965; 113.0 mm (4.4 in) in 1966.
Download the Data
Data for Julian Wynola standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Julian Wynola 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.