Record envelope, standing records and threshold days for Rico (USC00057017), Colorado, United States, with 109 years of record.
Key Facts for Rico
Rico (USC00057017) is a weather station in Colorado, United States at 37.71 latitude and -108.04 longitude, 2,682 m (8,800 ft) above sea level.
The station reports from 1893 to 2001, 109 years of record.
1,464 records set at Rico still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Rico set a daily record high maximum temperature of 26.7 C (80.1 F) on 28 August 2001.
About the Station
Location: Colorado, United States, 37.71 latitude, -108.04 longitude.
Elevation: 2,682 m (8,800 ft).
Period of record: 1893 to 2001, 109 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 Rico. 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 Rico, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
18.9 C (66.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Apr
23.9 C (75.0 F)
-23.9 C (-11.0 F)
n/a
n/a
May
27.8 C (82.0 F)
-15.6 C (3.9 F)
n/a
n/a
Jun
30.6 C (87.1 F)
-12.8 C (9.0 F)
n/a
n/a
Jul
31.1 C (88.0 F)
-6.1 C (21.0 F)
n/a
n/a
Aug
31.7 C (89.1 F)
-7.2 C (19.0 F)
n/a
n/a
Sep
28.9 C (84.0 F)
-12.2 C (10.0 F)
n/a
n/a
Oct
26.7 C (80.1 F)
-18.9 C (-2.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rico still stand. 1984 holds the most, with 76.
Standing records at Rico by the year they were set
Year set
Standing records
1895
9
1896
54
1897
30
1898
23
1958
12
1959
42
1960
55
1961
29
1962
46
1963
37
1964
26
1965
34
1966
32
1967
37
1968
22
1969
39
1970
28
1971
35
1972
38
1973
24
1974
23
1975
40
1976
11
1977
26
1978
29
1979
37
1980
43
1981
21
1982
24
1983
17
1984
76
1985
31
1986
36
1987
18
1988
29
1989
20
1990
75
1991
28
1992
34
1993
6
1994
14
1995
28
1996
35
1997
25
1998
34
1999
22
2000
21
2001
9
All-Time Record Progression
5 new records
5 all-time records were set at Rico between 2 February 1979 and 2 April 1980. Each dot is a new record.
When Rico set new all-time records
Date
Kind
Detail
1979-02-02
Record snow depth
Record snow depth 188.0 cm (74.0 in)
1980-02-20
Record snow depth
Record snow depth 190.5 cm (75.0 in)
1980-02-21
Record snow depth
Record snow depth 198.1 cm (78.0 in)
1980-02-22
Record snow depth
Record snow depth 218.4 cm (86.0 in)
1980-04-02
Record snow depth
Record snow depth 226.1 cm (89.0 in)
Wettest Day of Each Month
Mar: 95.8 mm (3.8 in)
The wettest day on record for each calendar month at Rico. The most was 95.8 mm (3.8 in) on 23 March 1893.
Record daily precipitation for each month at Rico
Month
Record daily precipitation (mm)
Date
Jan
64.3 mm (2.5 in)
17 January 1895
Feb
54.1 mm (2.1 in)
11 February 1895
Mar
95.8 mm (3.8 in)
23 March 1893
Apr
33.8 mm (1.3 in)
19 April 1926
May
40.4 mm (1.6 in)
31 May 1930
Jun
45.7 mm (1.8 in)
28 June 1988
Jul
38.1 mm (1.5 in)
13 July 1995
Aug
61.0 mm (2.4 in)
31 August 1957
Sep
77.5 mm (3.1 in)
22 September 1941
Oct
71.1 mm (2.8 in)
30 October 1959
Nov
58.4 mm (2.3 in)
25 November 1965
Dec
74.9 mm (2.9 in)
6 December 1966
Period of Record Coverage
1895 to 2001
Complete yearUnder 90 percent of days
48 years of record at Rico, 1895 to 2001. 4 years have data for under 90 percent of days and are left out of rankings: 1895, 1958, 1993, 2001.
Cooler than the station meanWarmer than the station mean
One stripe for each of 39 complete years at Rico, 1896 to 1999. Blue stripes are years cooler than the station's own mean of 3.7 C (38.7 F); red stripes are warmer. The coolest year was 1984, at 2.1 C (35.8 F), and the warmest was 1981, at 5.0 C (41.0 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Rico as warming stripes, 1896 to 1999
Year
Annual mean temperature
Difference from the station mean
1896
4.4 C
+0.68 C
1959
4.6 C
+0.89 C
1960
3.9 C
+0.18 C
1961
3.8 C
+0.02 C
1962
4.3 C
+0.57 C
1963
4.6 C
+0.82 C
1964
2.7 C
-1.01 C
1965
3.4 C
-0.32 C
1966
4.0 C
+0.24 C
1967
4.2 C
+0.43 C
1968
3.5 C
-0.26 C
1969
3.6 C
-0.10 C
1970
3.2 C
-0.51 C
1971
3.1 C
-0.68 C
1972
3.8 C
+0.06 C
1973
2.9 C
-0.84 C
1974
3.5 C
-0.21 C
1975
2.8 C
-0.94 C
1976
3.8 C
+0.02 C
1977
4.0 C
+0.28 C
1978
4.0 C
+0.25 C
1980
4.3 C
+0.57 C
1981
5.0 C
+1.25 C
1982
3.2 C
-0.55 C
1983
3.7 C
0.00 C
1984
2.1 C
-1.60 C
1985
3.4 C
-0.32 C
1986
4.5 C
+0.75 C
1987
4.1 C
+0.37 C
1988
4.2 C
+0.43 C
1989
4.0 C
+0.25 C
1990
2.5 C
-1.26 C
1991
3.6 C
-0.18 C
1992
3.6 C
-0.14 C
1994
3.7 C
-0.05 C
1996
4.2 C
+0.42 C
1997
3.7 C
-0.03 C
1998
3.6 C
-0.09 C
1999
4.5 C
+0.77 C
The fitted trend in annual mean temperature here over 1896 to 1999 is 0.0 C (-0.2 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.1) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rico
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.0 C (-0.2 to 0.1) per decade
-0.1 F (-0.3 to 0.1) per decade
1896 to 1999
39
Not clearly different from zero
Mean daily maximum
-0.09 C (-0.22 to 0.04) per decade
-0.2 F (-0.4 to 0.1) per decade
1896 to 1999
39
Not clearly different from zero
Mean daily minimum
-0.01 C (-0.19 to 0.17) per decade
-0.02 F (-0.34 to 0.31) per decade
1896 to 1999
39
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
1893 to 2001
Yearly extremes at Rico: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
31.7 C (89.1 F)
1978
28.9 C (84.0 F)
48
Coldest night (TNn)
-37.8 C (-36.0 F)
1963
-28.3 C (-18.9 F)
48
Wettest day (Rx1day)
95.8 mm (3.8 in)
1893
35.3 mm (1.4 in)
99
Wettest five days (Rx5day)
160.0 mm (6.3 in)
1966
63.7 mm (2.5 in)
99
Longest dry spell (CDD)
79 days
1999
27 days
99
Hottest day (TXx)
The hottest day of the year at Rico, 1893 to 2001. The record is 31.7 C (89.1 F) in 1978, marked on the chart; the median year is 28.9 C (84.0 F).
Hottest day (TXx) at Rico by year
Year
Hottest day (TXx)
1893
n/a
1894
n/a
1895
20.0 C (68.0 F)
1896
29.4 C (84.9 F)
1897
30.0 C (86.0 F)
1898
30.0 C (86.0 F)
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
28.9 C (84.0 F)
1959
30.6 C (87.1 F)
1960
30.0 C (86.0 F)
1961
30.6 C (87.1 F)
1962
30.6 C (87.1 F)
1963
29.4 C (84.9 F)
1964
28.3 C (82.9 F)
1965
28.3 C (82.9 F)
1966
28.9 C (84.0 F)
1967
28.3 C (82.9 F)
1968
29.4 C (84.9 F)
1969
29.4 C (84.9 F)
1970
30.6 C (87.1 F)
1971
30.6 C (87.1 F)
1972
30.6 C (87.1 F)
1973
31.1 C (88.0 F)
1974
30.6 C (87.1 F)
1975
27.8 C (82.0 F)
1976
29.4 C (84.9 F)
1977
28.9 C (84.0 F)
1978
31.7 C (89.1 F)
1979
31.1 C (88.0 F)
1980
30.0 C (86.0 F)
1981
28.9 C (84.0 F)
1982
28.9 C (84.0 F)
1983
26.7 C (80.1 F)
1984
27.8 C (82.0 F)
1985
30.0 C (86.0 F)
1986
27.2 C (81.0 F)
1987
27.2 C (81.0 F)
1988
27.8 C (82.0 F)
1989
30.0 C (86.0 F)
1990
26.7 C (80.1 F)
1991
26.1 C (79.0 F)
1992
27.8 C (82.0 F)
1993
28.3 C (82.9 F)
1994
28.3 C (82.9 F)
1995
28.3 C (82.9 F)
1996
28.9 C (84.0 F)
1997
28.9 C (84.0 F)
1998
30.0 C (86.0 F)
1999
28.3 C (82.9 F)
2000
30.0 C (86.0 F)
2001
28.9 C (84.0 F)
Coldest night (TNn)
The coldest night of the year at Rico, 1893 to 2001. The record is -37.8 C (-36.0 F) in 1963, marked on the chart; the median year is -28.3 C (-18.9 F).
Coldest night (TNn) at Rico by year
Year
Coldest night (TNn)
1893
n/a
1894
n/a
1895
-26.7 C (-16.1 F)
1896
-28.3 C (-18.9 F)
1897
-27.2 C (-17.0 F)
1898
-28.3 C (-18.9 F)
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
-19.4 C (-2.9 F)
1959
-27.8 C (-18.0 F)
1960
-31.1 C (-24.0 F)
1961
-31.7 C (-25.1 F)
1962
-31.7 C (-25.1 F)
1963
-37.8 C (-36.0 F)
1964
-28.9 C (-20.0 F)
1965
-31.7 C (-25.1 F)
1966
-27.8 C (-18.0 F)
1967
-28.9 C (-20.0 F)
1968
-27.2 C (-17.0 F)
1969
-28.3 C (-18.9 F)
1970
-28.3 C (-18.9 F)
1971
-36.1 C (-33.0 F)
1972
-30.0 C (-22.0 F)
1973
-26.1 C (-15.0 F)
1974
-29.4 C (-20.9 F)
1975
-26.1 C (-15.0 F)
1976
-30.0 C (-22.0 F)
1977
-26.1 C (-15.0 F)
1978
-32.8 C (-27.0 F)
1979
-31.1 C (-24.0 F)
1980
-24.4 C (-11.9 F)
1981
-25.6 C (-14.1 F)
1982
-31.1 C (-24.0 F)
1983
-28.3 C (-18.9 F)
1984
-33.9 C (-29.0 F)
1985
-33.9 C (-29.0 F)
1986
-27.2 C (-17.0 F)
1987
-23.9 C (-11.0 F)
1988
-26.7 C (-16.1 F)
1989
-28.3 C (-18.9 F)
1990
-32.2 C (-26.0 F)
1991
-24.4 C (-11.9 F)
1992
-25.0 C (-13.0 F)
1993
-26.1 C (-15.0 F)
1994
-28.9 C (-20.0 F)
1995
-25.0 C (-13.0 F)
1996
-27.2 C (-17.0 F)
1997
-23.3 C (-9.9 F)
1998
-26.1 C (-15.0 F)
1999
-22.2 C (-8.0 F)
2000
-22.8 C (-9.0 F)
2001
-28.3 C (-18.9 F)
Wettest day (Rx1day)
The wettest day of the year at Rico, 1893 to 2001. The record is 95.8 mm (3.8 in) in 1893, marked on the chart; the median year is 35.3 mm (1.4 in).
Wettest day (Rx1day) at Rico by year
Year
Wettest day (Rx1day)
1893
95.8 mm (3.8 in)
1894
37.8 mm (1.5 in)
1895
64.3 mm (2.5 in)
1896
50.3 mm (2.0 in)
1897
30.5 mm (1.2 in)
1898
29.7 mm (1.2 in)
1909
15.5 mm (0.6 in)
1910
38.1 mm (1.5 in)
1911
43.4 mm (1.7 in)
1912
21.8 mm (0.9 in)
1913
39.1 mm (1.5 in)
1914
55.4 mm (2.2 in)
1915
26.7 mm (1.1 in)
1916
24.4 mm (1.0 in)
1917
41.1 mm (1.6 in)
1918
43.7 mm (1.7 in)
1919
38.1 mm (1.5 in)
1920
23.4 mm (0.9 in)
1921
30.5 mm (1.2 in)
1922
33.0 mm (1.3 in)
1923
47.2 mm (1.9 in)
1924
24.1 mm (0.9 in)
1925
30.5 mm (1.2 in)
1926
33.8 mm (1.3 in)
1927
43.7 mm (1.7 in)
1928
24.9 mm (1.0 in)
1929
37.6 mm (1.5 in)
1930
40.4 mm (1.6 in)
1931
26.9 mm (1.1 in)
1932
34.0 mm (1.3 in)
1933
38.9 mm (1.5 in)
1934
21.8 mm (0.9 in)
1935
23.1 mm (0.9 in)
1936
28.7 mm (1.1 in)
1937
46.2 mm (1.8 in)
1938
35.3 mm (1.4 in)
1939
21.6 mm (0.9 in)
1940
31.0 mm (1.2 in)
1941
77.5 mm (3.1 in)
1942
22.9 mm (0.9 in)
1943
41.9 mm (1.6 in)
1944
38.1 mm (1.5 in)
1945
35.6 mm (1.4 in)
1946
26.7 mm (1.1 in)
1947
30.0 mm (1.2 in)
1948
33.5 mm (1.3 in)
1949
35.6 mm (1.4 in)
1950
40.1 mm (1.6 in)
1951
39.6 mm (1.6 in)
1952
25.9 mm (1.0 in)
1953
61.0 mm (2.4 in)
1954
39.4 mm (1.6 in)
1955
29.2 mm (1.1 in)
1956
24.1 mm (0.9 in)
1957
61.0 mm (2.4 in)
1958
30.5 mm (1.2 in)
1959
71.1 mm (2.8 in)
1960
25.4 mm (1.0 in)
1961
27.9 mm (1.1 in)
1962
27.9 mm (1.1 in)
1963
27.9 mm (1.1 in)
1964
44.5 mm (1.8 in)
1965
58.4 mm (2.3 in)
1966
74.9 mm (2.9 in)
1967
38.1 mm (1.5 in)
1968
22.4 mm (0.9 in)
1969
58.4 mm (2.3 in)
1970
50.8 mm (2.0 in)
1971
34.8 mm (1.4 in)
1972
47.0 mm (1.9 in)
1973
29.2 mm (1.1 in)
1974
25.4 mm (1.0 in)
1975
22.9 mm (0.9 in)
1976
33.5 mm (1.3 in)
1977
38.9 mm (1.5 in)
1978
40.9 mm (1.6 in)
1979
34.3 mm (1.4 in)
1980
40.6 mm (1.6 in)
1981
38.1 mm (1.5 in)
1982
57.2 mm (2.3 in)
1983
31.2 mm (1.2 in)
1984
32.8 mm (1.3 in)
1985
36.8 mm (1.4 in)
1986
48.0 mm (1.9 in)
1987
51.8 mm (2.0 in)
1988
56.9 mm (2.2 in)
1989
43.2 mm (1.7 in)
1990
26.7 mm (1.1 in)
1991
34.5 mm (1.4 in)
1992
25.7 mm (1.0 in)
1993
50.3 mm (2.0 in)
1994
36.8 mm (1.4 in)
1995
50.8 mm (2.0 in)
1996
27.9 mm (1.1 in)
1997
30.5 mm (1.2 in)
1998
24.1 mm (0.9 in)
1999
35.6 mm (1.4 in)
2000
22.4 mm (0.9 in)
2001
25.4 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rico, 1893 to 2001. The record is 160.0 mm (6.3 in) in 1966, marked on the chart; the median year is 63.7 mm (2.5 in).
Wettest five days (Rx5day) at Rico by year
Year
Wettest five days (Rx5day)
1893
125.8 mm (5.0 in)
1894
74.1 mm (2.9 in)
1895
115.9 mm (4.6 in)
1896
70.7 mm (2.8 in)
1897
71.2 mm (2.8 in)
1898
68.5 mm (2.7 in)
1909
27.9 mm (1.1 in)
1910
73.4 mm (2.9 in)
1911
65.8 mm (2.6 in)
1912
31.0 mm (1.2 in)
1913
48.5 mm (1.9 in)
1914
154.5 mm (6.1 in)
1915
63.8 mm (2.5 in)
1916
64.7 mm (2.5 in)
1917
54.3 mm (2.1 in)
1918
87.7 mm (3.5 in)
1919
76.0 mm (3.0 in)
1920
52.0 mm (2.0 in)
1921
40.8 mm (1.6 in)
1922
63.3 mm (2.5 in)
1923
59.3 mm (2.3 in)
1924
35.0 mm (1.4 in)
1925
70.7 mm (2.8 in)
1926
60.3 mm (2.4 in)
1927
116.3 mm (4.6 in)
1928
44.5 mm (1.8 in)
1929
74.6 mm (2.9 in)
1930
61.3 mm (2.4 in)
1931
42.5 mm (1.7 in)
1932
76.2 mm (3.0 in)
1933
61.5 mm (2.4 in)
1934
43.9 mm (1.7 in)
1935
57.4 mm (2.3 in)
1936
58.9 mm (2.3 in)
1937
50.3 mm (2.0 in)
1938
63.7 mm (2.5 in)
1939
43.0 mm (1.7 in)
1940
52.9 mm (2.1 in)
1941
94.5 mm (3.7 in)
1942
54.1 mm (2.1 in)
1943
93.9 mm (3.7 in)
1944
62.3 mm (2.5 in)
1945
45.7 mm (1.8 in)
1946
40.1 mm (1.6 in)
1947
94.0 mm (3.7 in)
1948
46.2 mm (1.8 in)
1949
69.9 mm (2.8 in)
1950
44.3 mm (1.7 in)
1951
61.0 mm (2.4 in)
1952
60.2 mm (2.4 in)
1953
85.6 mm (3.4 in)
1954
43.2 mm (1.7 in)
1955
64.8 mm (2.6 in)
1956
74.4 mm (2.9 in)
1957
77.5 mm (3.1 in)
1958
36.9 mm (1.5 in)
1959
92.6 mm (3.6 in)
1960
38.8 mm (1.5 in)
1961
49.1 mm (1.9 in)
1962
47.9 mm (1.9 in)
1963
49.5 mm (1.9 in)
1964
87.8 mm (3.5 in)
1965
106.7 mm (4.2 in)
1966
160.0 mm (6.3 in)
1967
94.0 mm (3.7 in)
1968
57.1 mm (2.2 in)
1969
97.3 mm (3.8 in)
1970
76.2 mm (3.0 in)
1971
62.8 mm (2.5 in)
1972
93.2 mm (3.7 in)
1973
51.6 mm (2.0 in)
1974
47.9 mm (1.9 in)
1975
47.8 mm (1.9 in)
1976
70.9 mm (2.8 in)
1977
49.2 mm (1.9 in)
1978
107.2 mm (4.2 in)
1979
50.1 mm (2.0 in)
1980
91.2 mm (3.6 in)
1981
105.7 mm (4.2 in)
1982
94.1 mm (3.7 in)
1983
82.5 mm (3.2 in)
1984
70.6 mm (2.8 in)
1985
67.9 mm (2.7 in)
1986
94.0 mm (3.7 in)
1987
79.0 mm (3.1 in)
1988
130.5 mm (5.1 in)
1989
72.6 mm (2.9 in)
1990
62.0 mm (2.4 in)
1991
86.3 mm (3.4 in)
1992
50.6 mm (2.0 in)
1993
91.2 mm (3.6 in)
1994
39.3 mm (1.5 in)
1995
78.7 mm (3.1 in)
1996
27.9 mm (1.1 in)
1997
39.6 mm (1.6 in)
1998
38.0 mm (1.5 in)
1999
66.0 mm (2.6 in)
2000
45.4 mm (1.8 in)
2001
39.6 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rico, 1893 to 2001. The record is 79 days in 1999, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Rico by year
Year
Longest dry spell (CDD)
1893
65 days
1894
50 days
1895
21 days
1896
24 days
1897
19 days
1898
42 days
1909
9 days
1910
34 days
1911
28 days
1912
35 days
1913
23 days
1914
39 days
1915
28 days
1916
46 days
1917
35 days
1918
17 days
1919
19 days
1920
34 days
1921
6 days
1922
19 days
1923
28 days
1924
30 days
1925
17 days
1926
24 days
1927
32 days
1928
27 days
1929
41 days
1930
40 days
1931
28 days
1932
34 days
1933
23 days
1934
39 days
1935
26 days
1936
28 days
1937
21 days
1938
16 days
1939
38 days
1940
28 days
1941
16 days
1942
40 days
1943
21 days
1944
20 days
1945
26 days
1946
18 days
1947
14 days
1948
22 days
1949
27 days
1950
42 days
1951
30 days
1952
42 days
1953
26 days
1954
19 days
1955
39 days
1956
43 days
1957
30 days
1958
31 days
1959
35 days
1960
24 days
1961
25 days
1962
24 days
1963
28 days
1964
43 days
1965
27 days
1966
23 days
1967
23 days
1968
25 days
1969
16 days
1970
26 days
1971
33 days
1972
23 days
1973
33 days
1974
26 days
1975
17 days
1976
33 days
1977
30 days
1978
36 days
1979
26 days
1980
42 days
1981
27 days
1982
25 days
1983
16 days
1984
26 days
1985
20 days
1986
24 days
1987
18 days
1988
24 days
1989
31 days
1990
21 days
1991
21 days
1992
34 days
1993
48 days
1994
26 days
1995
32 days
1996
44 days
1997
42 days
1998
75 days
1999
79 days
2000
54 days
2001
21 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
39 years with a frost
Across 39 years with a frost, the median last spring frost at Rico falls on 24 June and the median first autumn frost on 25 July, which leaves a median of 34 days between them.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
Frost dates and growing season at Rico
Measure
Median, all years
Earliest period
Recent period (1967 to 1999)
Recent against earliest
Fitted trend
Last spring frost
24 June
n/a
24 June
n/a
-0.4 days per decade
First autumn frost
25 July
n/a
29 July
n/a
+0.8 days per decade
Growing days
34 days
n/a
37 days
n/a
+1.2 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
87 years, 1893 to 2000
A day with at least 34.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 91.9 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Rico: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
34.6 mm (1.4 in)
5 years
46.5 mm (1.8 in)
10 years
55.7 mm (2.2 in)
25 years
68.7 mm (2.7 in)
50 years
79.8 mm (3.1 in)
100 years
91.9 mm (3.6 in)
Longer than the 87 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, 87 years of values from 1893 to 2000.
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: 95.8 mm (3.8 in) in 1893; 77.5 mm (3.1 in) in 1941; 74.9 mm (2.9 in) in 1966.
Download the Data
Data for Rico standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rico 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.