Record envelope, standing records and threshold days for Fredonia (USC00023250), Arizona, United States, with 106 years of record.
Key Facts for Fredonia
Fredonia (USC00023250) is a weather station in Arizona, United States at 36.94 latitude and -112.53 longitude, 1,421 m (4,662 ft) above sea level.
The station reports from 1906 to 2011, 106 years of record.
1,464 records set at Fredonia still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Fredonia set a daily record low minimum temperature of -12.2 C (10.0 F) on 30 November 2010.
About the Station
Location: Arizona, United States, 36.94 latitude, -112.53 longitude.
Elevation: 1,421 m (4,662 ft).
Period of record: 1906 to 2011, 106 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 Fredonia. 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 Fredonia, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
25.6 C (78.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-16.7 C (1.9 F)
n/a
n/a
May
35.6 C (96.1 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
41.7 C (107.1 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
43.3 C (109.9 F)
2.8 C (37.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
0.6 C (33.1 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-12.8 C (9.0 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Fredonia still stand. 1939 holds the most, with 73.
Standing records at Fredonia by the year they were set
Year set
Standing records
1906
24
1907
55
1937
30
1938
39
1939
73
1940
48
1941
27
1942
19
1943
30
1944
26
1945
46
1946
22
1947
32
1948
36
1949
68
1950
41
1951
27
1952
36
1953
46
1954
22
1955
37
1956
44
1957
17
1958
30
1959
20
1960
23
1961
24
1962
28
1963
28
1964
39
1965
39
1966
26
1967
29
1968
16
1969
25
1970
33
1971
33
1972
21
1973
14
1974
16
1975
17
2004
15
2005
28
2006
5
2007
33
2008
18
2009
24
2010
35
All-Time Record Progression
5 new records
5 all-time records were set at Fredonia between 25 June 1970 and 17 July 2005. Each dot is a new record.
When Fredonia set new all-time records
Date
Kind
Detail
1970-06-25
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1970-06-26
Record high maximum temperature
Record high maximum temperature 41.7 C (107.1 F)
1973-01-04
Record daily snowfall
Record daily snowfall 48.3 cm (19.0 in)
1973-01-06
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
2005-07-17
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
Wettest Day of Each Month
Sep: 54.6 mm (2.1 in)
The wettest day on record for each calendar month at Fredonia. The most was 54.6 mm (2.1 in) on 12 September 1939.
Record daily precipitation for each month at Fredonia
Month
Record daily precipitation (mm)
Date
Jan
36.3 mm (1.4 in)
25 January 1969
Feb
31.8 mm (1.3 in)
14 February 1954
Mar
33.0 mm (1.3 in)
22 March 1958
Apr
28.4 mm (1.1 in)
24 April 2005
May
24.6 mm (1.0 in)
13 May 1965
Jun
27.9 mm (1.1 in)
28 June 1937
Jul
33.0 mm (1.3 in)
29 July 2007
Aug
35.3 mm (1.4 in)
9 August 1942
Sep
54.6 mm (2.1 in)
12 September 1939
Oct
52.8 mm (2.1 in)
21 October 2004
Nov
39.9 mm (1.6 in)
23 November 1965
Dec
24.6 mm (1.0 in)
30 December 1951
Period of Record Coverage
1906 to 2011
Complete yearUnder 90 percent of days
49 years of record at Fredonia, 1906 to 2011. 18 years have data for under 90 percent of days and are left out of rankings: 1906, 1907, 1937, 1966, 1967, 1968, 1969, 1970 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 28 complete years at Fredonia, 1940 to 2008. Blue stripes are years cooler than the station's own mean of 11.2 C (52.2 F); red stripes are warmer. The coolest year was 1949, at 9.7 C (49.4 F), and the warmest was 1940, at 12.8 C (55.1 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Fredonia as warming stripes, 1940 to 2008
Year
Annual mean temperature
Difference from the station mean
1940
12.8 C
+1.60 C
1941
11.0 C
-0.18 C
1942
11.1 C
-0.09 C
1943
11.8 C
+0.54 C
1944
10.6 C
-0.66 C
1946
11.7 C
+0.43 C
1947
11.4 C
+0.16 C
1948
10.6 C
-0.62 C
1949
9.7 C
-1.54 C
1950
11.4 C
+0.14 C
1951
10.6 C
-0.63 C
1952
10.5 C
-0.71 C
1953
10.7 C
-0.57 C
1954
11.3 C
+0.11 C
1955
10.8 C
-0.39 C
1956
11.2 C
+0.00 C
1957
11.5 C
+0.24 C
1958
11.8 C
+0.58 C
1959
11.6 C
+0.35 C
1961
11.2 C
-0.04 C
1962
11.3 C
+0.05 C
1963
11.4 C
+0.14 C
1964
10.2 C
-0.98 C
1965
10.8 C
-0.47 C
1967
11.0 C
-0.27 C
2005
12.2 C
+0.99 C
2007
12.6 C
+1.37 C
2008
11.5 C
+0.32 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
1906 to 2011
Yearly extremes at Fredonia: 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)
2005
38.9 C (102.0 F)
49
Coldest night (TNn)
-28.9 C (-20.0 F)
1973
-19.4 C (-2.9 F)
49
Wettest day (Rx1day)
54.6 mm (2.1 in)
1939
24.1 mm (0.9 in)
49
Wettest five days (Rx5day)
94.7 mm (3.7 in)
1939
37.7 mm (1.5 in)
48
Longest dry spell (CDD)
188 days
2010
53 days
49
Hottest day (TXx)
The hottest day of the year at Fredonia, 1906 to 2011. The record is 43.3 C (109.9 F) in 2005, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Fredonia by year
Year
Hottest day (TXx)
1906
37.8 C (100.0 F)
1907
39.4 C (102.9 F)
1937
40.0 C (104.0 F)
1938
38.3 C (100.9 F)
1939
40.6 C (105.1 F)
1940
40.0 C (104.0 F)
1941
38.3 C (100.9 F)
1942
38.3 C (100.9 F)
1943
36.7 C (98.1 F)
1944
38.3 C (100.9 F)
1945
37.2 C (99.0 F)
1946
39.4 C (102.9 F)
1947
37.8 C (100.0 F)
1948
38.9 C (102.0 F)
1949
38.3 C (100.9 F)
1950
38.9 C (102.0 F)
1951
37.2 C (99.0 F)
1952
36.7 C (98.1 F)
1953
37.8 C (100.0 F)
1954
40.0 C (104.0 F)
1955
37.2 C (99.0 F)
1956
38.9 C (102.0 F)
1957
37.2 C (99.0 F)
1958
39.4 C (102.9 F)
1959
39.4 C (102.9 F)
1960
40.0 C (104.0 F)
1961
40.0 C (104.0 F)
1962
39.4 C (102.9 F)
1963
37.8 C (100.0 F)
1964
37.8 C (100.0 F)
1965
37.2 C (99.0 F)
1966
38.3 C (100.9 F)
1967
38.9 C (102.0 F)
1968
37.8 C (100.0 F)
1969
38.3 C (100.9 F)
1970
41.7 C (107.1 F)
1971
40.0 C (104.0 F)
1972
40.6 C (105.1 F)
1973
40.0 C (104.0 F)
1974
38.9 C (102.0 F)
1975
37.2 C (99.0 F)
2004
38.3 C (100.9 F)
2005
43.3 C (109.9 F)
2006
18.9 C (66.0 F)
2007
41.1 C (106.0 F)
2008
39.4 C (102.9 F)
2009
40.6 C (105.1 F)
2010
40.0 C (104.0 F)
2011
32.2 C (90.0 F)
Coldest night (TNn)
The coldest night of the year at Fredonia, 1906 to 2011. The record is -28.9 C (-20.0 F) in 1973, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Fredonia by year
Year
Coldest night (TNn)
1906
-12.8 C (9.0 F)
1907
-13.9 C (7.0 F)
1937
-12.2 C (10.0 F)
1938
-13.9 C (7.0 F)
1939
-23.3 C (-9.9 F)
1940
-18.3 C (-0.9 F)
1941
-15.0 C (5.0 F)
1942
-24.4 C (-11.9 F)
1943
-12.2 C (10.0 F)
1944
-15.0 C (5.0 F)
1945
-26.1 C (-15.0 F)
1946
-21.7 C (-7.1 F)
1947
-19.4 C (-2.9 F)
1948
-21.7 C (-7.1 F)
1949
-27.8 C (-18.0 F)
1950
-20.6 C (-5.1 F)
1951
-20.0 C (-4.0 F)
1952
-23.3 C (-9.9 F)
1953
-19.4 C (-2.9 F)
1954
-16.7 C (1.9 F)
1955
-20.6 C (-5.1 F)
1956
-16.7 C (1.9 F)
1957
-17.8 C (0.0 F)
1958
-16.1 C (3.0 F)
1959
-20.0 C (-4.0 F)
1960
-23.3 C (-9.9 F)
1961
-26.1 C (-15.0 F)
1962
-22.8 C (-9.0 F)
1963
-24.4 C (-11.9 F)
1964
-20.6 C (-5.1 F)
1965
-19.4 C (-2.9 F)
1966
-24.4 C (-11.9 F)
1967
-27.8 C (-18.0 F)
1968
-19.4 C (-2.9 F)
1969
-17.8 C (0.0 F)
1970
-20.6 C (-5.1 F)
1971
-25.0 C (-13.0 F)
1972
-19.4 C (-2.9 F)
1973
-28.9 C (-20.0 F)
1974
-17.8 C (0.0 F)
1975
-16.7 C (1.9 F)
2004
-11.7 C (10.9 F)
2005
-21.1 C (-6.0 F)
2006
-16.7 C (1.9 F)
2007
-21.7 C (-7.1 F)
2008
-20.6 C (-5.1 F)
2009
-13.9 C (7.0 F)
2010
-14.4 C (6.1 F)
2011
6.1 C (43.0 F)
Wettest day (Rx1day)
The wettest day of the year at Fredonia, 1906 to 2011. The record is 54.6 mm (2.1 in) in 1939, marked on the chart; the median year is 24.1 mm (0.9 in).
Wettest day (Rx1day) at Fredonia by year
Year
Wettest day (Rx1day)
1906
22.9 mm (0.9 in)
1907
27.2 mm (1.1 in)
1937
27.9 mm (1.1 in)
1938
34.8 mm (1.4 in)
1939
54.6 mm (2.1 in)
1940
31.8 mm (1.3 in)
1941
26.9 mm (1.1 in)
1942
35.3 mm (1.4 in)
1943
20.3 mm (0.8 in)
1944
17.3 mm (0.7 in)
1945
24.1 mm (0.9 in)
1946
24.1 mm (0.9 in)
1947
27.7 mm (1.1 in)
1948
16.3 mm (0.6 in)
1949
18.3 mm (0.7 in)
1950
14.2 mm (0.6 in)
1951
34.3 mm (1.4 in)
1952
21.1 mm (0.8 in)
1953
33.5 mm (1.3 in)
1954
37.1 mm (1.5 in)
1955
17.0 mm (0.7 in)
1956
15.0 mm (0.6 in)
1957
22.1 mm (0.9 in)
1958
33.0 mm (1.3 in)
1959
23.6 mm (0.9 in)
1960
18.5 mm (0.7 in)
1961
10.2 mm (0.4 in)
1962
25.4 mm (1.0 in)
1963
27.9 mm (1.1 in)
1964
16.5 mm (0.6 in)
1965
39.9 mm (1.6 in)
1966
24.6 mm (1.0 in)
1967
22.4 mm (0.9 in)
1968
26.7 mm (1.1 in)
1969
36.3 mm (1.4 in)
1970
23.9 mm (0.9 in)
1971
21.3 mm (0.8 in)
1972
16.3 mm (0.6 in)
1973
32.8 mm (1.3 in)
1974
11.4 mm (0.4 in)
1975
27.9 mm (1.1 in)
2004
52.8 mm (2.1 in)
2005
28.4 mm (1.1 in)
2006
1.0 mm (0.04 in)
2007
33.0 mm (1.3 in)
2008
21.8 mm (0.9 in)
2009
10.2 mm (0.4 in)
2010
13.7 mm (0.5 in)
2011
0.0 mm (0.00 in)
Wettest five days (Rx5day)
The wettest five days of the year at Fredonia, 1906 to 2011. The record is 94.7 mm (3.7 in) in 1939, marked on the chart; the median year is 37.7 mm (1.5 in).
Wettest five days (Rx5day) at Fredonia by year
Year
Wettest five days (Rx5day)
1906
27.9 mm (1.1 in)
1907
37.4 mm (1.5 in)
1937
27.9 mm (1.1 in)
1938
47.5 mm (1.9 in)
1939
94.7 mm (3.7 in)
1940
37.9 mm (1.5 in)
1941
38.8 mm (1.5 in)
1942
65.0 mm (2.6 in)
1943
45.7 mm (1.8 in)
1944
40.1 mm (1.6 in)
1945
26.6 mm (1.0 in)
1946
32.5 mm (1.3 in)
1947
35.8 mm (1.4 in)
1948
33.4 mm (1.3 in)
1949
28.5 mm (1.1 in)
1950
19.3 mm (0.8 in)
1951
42.4 mm (1.7 in)
1952
27.4 mm (1.1 in)
1953
40.6 mm (1.6 in)
1954
48.8 mm (1.9 in)
1955
33.3 mm (1.3 in)
1956
24.5 mm (1.0 in)
1957
44.7 mm (1.8 in)
1958
39.4 mm (1.6 in)
1959
54.1 mm (2.1 in)
1960
30.9 mm (1.2 in)
1961
19.6 mm (0.8 in)
1962
49.8 mm (2.0 in)
1963
42.6 mm (1.7 in)
1964
26.4 mm (1.0 in)
1965
49.1 mm (1.9 in)
1966
83.1 mm (3.3 in)
1967
49.6 mm (2.0 in)
1968
34.6 mm (1.4 in)
1969
57.2 mm (2.3 in)
1970
40.6 mm (1.6 in)
1971
31.7 mm (1.2 in)
1972
38.6 mm (1.5 in)
1973
35.1 mm (1.4 in)
1974
35.2 mm (1.4 in)
1975
27.9 mm (1.1 in)
2004
59.1 mm (2.3 in)
2005
39.7 mm (1.6 in)
2006
2.4 mm (0.09 in)
2007
44.4 mm (1.7 in)
2008
24.6 mm (1.0 in)
2009
13.0 mm (0.5 in)
2010
21.6 mm (0.9 in)
2011
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Fredonia, 1906 to 2011. The record is 188 days in 2010, marked on the chart; the median year is 53 days.
Longest dry spell (CDD) at Fredonia by year
Year
Longest dry spell (CDD)
1906
47 days
1907
33 days
1937
64 days
1938
36 days
1939
40 days
1940
52 days
1941
40 days
1942
64 days
1943
71 days
1944
78 days
1945
51 days
1946
53 days
1947
45 days
1948
46 days
1949
38 days
1950
66 days
1951
55 days
1952
54 days
1953
74 days
1954
34 days
1955
80 days
1956
75 days
1957
42 days
1958
65 days
1959
62 days
1960
51 days
1961
57 days
1962
54 days
1963
60 days
1964
47 days
1965
32 days
1966
71 days
1967
56 days
1968
38 days
1969
61 days
1970
47 days
1971
50 days
1972
108 days
1973
89 days
1974
103 days
1975
28 days
2004
53 days
2005
30 days
2006
15 days
2007
68 days
2008
62 days
2009
44 days
2010
188 days
2011
3 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
28 years with a frost
Across 28 years with a frost, the median last spring frost at Fredonia falls on 26 May and the median first autumn frost on 6 October, which leaves a median of 128 days between them.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
Frost dates and growing season at Fredonia
Measure
Median, all years
Earliest period
Recent period (1940 to 2008)
Recent against earliest
Fitted trend
Last spring frost
26 May
n/a
26 May
n/a
-1.4 days per decade
First autumn frost
6 October
n/a
6 October
n/a
-1.1 days per decade
Growing days
128 days
n/a
128 days
n/a
+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
39 years, 1937 to 2008
A day with at least 24.6 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 50.5 mm (2.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Fredonia: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
24.6 mm (1.0 in)
5 years
32.3 mm (1.3 in)
10 years
37.1 mm (1.5 in)
25 years
42.8 mm (1.7 in)
50 years
46.8 mm (1.8 in)
Longer than the 39 years of record
100 years
50.5 mm (2.0 in)
Longer than the 39 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, 39 years of values from 1937 to 2008.
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: 54.6 mm (2.1 in) in 1939; 39.9 mm (1.6 in) in 1965; 37.1 mm (1.5 in) in 1954.
Download the Data
Data for Fredonia standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fredonia 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.