Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Ojos Negros. 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 Ojos Negros, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
41.7 C (107.1 F)
-14.4 C (6.1 F)
n/a
n/a
Feb
40.0 C (104.0 F)
-11.1 C (12.0 F)
n/a
n/a
Mar
40.6 C (105.1 F)
-11.1 C (12.0 F)
n/a
n/a
Apr
43.9 C (111.0 F)
-9.4 C (15.1 F)
n/a
n/a
May
45.6 C (114.1 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
50.0 C (122.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
50.6 C (123.1 F)
0.6 C (33.1 F)
n/a
n/a
Aug
51.1 C (124.0 F)
1.7 C (35.1 F)
n/a
n/a
Sep
52.8 C (127.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
50.0 C (122.0 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
46.7 C (116.1 F)
-11.1 C (12.0 F)
n/a
n/a
Dec
40.0 C (104.0 F)
-17.2 C (1.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ojos Negros still stand. 1956 holds the most, with 133.
Standing records at Ojos Negros by the year they were set
Year set
Standing records
1948
12
1949
23
1950
37
1951
34
1952
24
1953
46
1954
57
1955
84
1956
133
1957
60
1958
17
1959
72
1960
23
1961
16
1962
29
1963
50
1964
36
1965
49
1966
30
1967
46
1968
18
1969
51
1970
27
1971
54
1972
47
1973
41
1974
32
1975
43
1976
32
1977
28
1978
27
1979
24
1980
26
1981
11
1982
23
1983
20
1984
20
1985
13
1986
10
1987
26
1988
1
1989
3
1990
9
Wettest Day of Each Month
Aug: 84.8 mm (3.3 in)
The wettest day on record for each calendar month at Ojos Negros. The most was 84.8 mm (3.3 in) on 16 August 1977.
Record daily precipitation for each month at Ojos Negros
Month
Record daily precipitation (mm)
Date
Jan
66.8 mm (2.6 in)
29 January 1980
Feb
46.0 mm (1.8 in)
17 February 1980
Mar
42.9 mm (1.7 in)
10 March 1986
Apr
47.0 mm (1.9 in)
21 April 1988
May
8.9 mm (0.35 in)
5 May 1969
Jun
7.1 mm (0.28 in)
9 June 1957
Jul
17.8 mm (0.7 in)
21 July 1960
Aug
84.8 mm (3.3 in)
16 August 1977
Sep
27.9 mm (1.1 in)
28 September 1960
Oct
19.8 mm (0.8 in)
28 October 1974
Nov
40.9 mm (1.6 in)
30 November 1982
Dec
45.0 mm (1.8 in)
17 December 1978
Period of Record Coverage
1948 to 1990
Complete yearUnder 90 percent of days
43 years of record at Ojos Negros, 1948 to 1990. 3 years have data for under 90 percent of days and are left out of rankings: 1948, 1987, 1988.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Ojos Negros, 1949 to 1990. Blue stripes are years cooler than the station's own mean of 15.9 C (60.7 F); red stripes are warmer. The coolest year was 1975, at 12.8 C (55.1 F), and the warmest was 1956, at 21.8 C (71.2 F). The strongest colour marks a difference of 5.9 C (10.6 F).
Annual mean temperature at Ojos Negros as warming stripes, 1949 to 1990
Year
Annual mean temperature
Difference from the station mean
1949
16.6 C
+0.67 C
1951
18.4 C
+2.45 C
1952
17.7 C
+1.72 C
1953
18.9 C
+3.00 C
1954
19.9 C
+3.99 C
1955
19.4 C
+3.44 C
1956
21.8 C
+5.82 C
1957
17.6 C
+1.65 C
1958
15.6 C
-0.38 C
1959
19.2 C
+3.27 C
1960
15.6 C
-0.30 C
1961
15.1 C
-0.81 C
1962
15.1 C
-0.89 C
1963
18.4 C
+2.47 C
1965
13.0 C
-2.92 C
1966
14.1 C
-1.87 C
1967
15.0 C
-0.90 C
1968
16.5 C
+0.58 C
1969
15.7 C
-0.27 C
1970
16.3 C
+0.39 C
1972
15.3 C
-0.64 C
1973
14.2 C
-1.77 C
1974
14.0 C
-1.91 C
1975
12.8 C
-3.13 C
1976
14.8 C
-1.13 C
1977
15.2 C
-0.78 C
1978
14.2 C
-1.76 C
1979
13.6 C
-2.39 C
1980
13.9 C
-2.03 C
1981
14.7 C
-1.20 C
1982
14.0 C
-1.96 C
1983
14.2 C
-1.71 C
1984
16.0 C
+0.06 C
1985
14.5 C
-1.40 C
1986
15.0 C
-0.99 C
1989
17.0 C
+1.06 C
1990
16.6 C
+0.66 C
The annual mean temperature here has fallen by 1.0 C (0.5 to 1.5) per decade over 1949 to 1990. In Fahrenheit: 1.9 F (1.0 to 2.7) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ojos Negros
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-1.0 C (-1.5 to -0.5) per decade
-1.9 F (-2.7 to -1.0) per decade
1949 to 1990
37
Fall
Mean daily maximum
-2.1 C (-2.9 to -1.2) per decade
-3.7 F (-5.2 to -2.2) per decade
1949 to 1990
37
Fall
Mean daily minimum
0.00 C (-0.32 to 0.32) per decade
0.00 F (-0.58 to 0.58) per decade
1949 to 1990
37
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
1948 to 1990
Yearly extremes at Ojos Negros: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
52.8 C (127.0 F)
1955
42.8 C (109.0 F)
43
Coldest night (TNn)
-17.2 C (1.0 F)
1967
-8.3 C (17.1 F)
43
Wettest day (Rx1day)
84.8 mm (3.3 in)
1977
30.0 mm (1.2 in)
43
Wettest five days (Rx5day)
138.5 mm (5.5 in)
1980
47.0 mm (1.9 in)
43
Longest dry spell (CDD)
228 days
1966
101 days
43
Hottest day (TXx)
The hottest day of the year at Ojos Negros, 1948 to 1990. The record is 52.8 C (127.0 F) in 1955, marked on the chart; the median year is 42.8 C (109.0 F).
Hottest day (TXx) at Ojos Negros by year
Year
Hottest day (TXx)
1948
40.6 C (105.1 F)
1949
47.2 C (117.0 F)
1950
50.0 C (122.0 F)
1951
48.9 C (120.0 F)
1952
48.9 C (120.0 F)
1953
51.1 C (124.0 F)
1954
50.0 C (122.0 F)
1955
52.8 C (127.0 F)
1956
50.6 C (123.1 F)
1957
43.9 C (111.0 F)
1958
40.6 C (105.1 F)
1959
50.6 C (123.1 F)
1960
41.7 C (107.1 F)
1961
40.6 C (105.1 F)
1962
42.8 C (109.0 F)
1963
48.9 C (120.0 F)
1964
42.8 C (109.0 F)
1965
37.8 C (100.0 F)
1966
47.8 C (118.0 F)
1967
50.0 C (122.0 F)
1968
45.0 C (113.0 F)
1969
50.6 C (123.1 F)
1970
45.0 C (113.0 F)
1971
47.8 C (118.0 F)
1972
42.8 C (109.0 F)
1973
42.8 C (109.0 F)
1974
40.6 C (105.1 F)
1975
38.9 C (102.0 F)
1976
43.9 C (111.0 F)
1977
45.0 C (113.0 F)
1978
42.8 C (109.0 F)
1979
40.6 C (105.1 F)
1980
36.7 C (98.1 F)
1981
37.8 C (100.0 F)
1982
40.0 C (104.0 F)
1983
38.9 C (102.0 F)
1984
40.6 C (105.1 F)
1985
40.6 C (105.1 F)
1986
40.0 C (104.0 F)
1987
30.6 C (87.1 F)
1988
40.6 C (105.1 F)
1989
45.0 C (113.0 F)
1990
43.9 C (111.0 F)
Coldest night (TNn)
The coldest night of the year at Ojos Negros, 1948 to 1990. The record is -17.2 C (1.0 F) in 1967, marked on the chart; the median year is -8.3 C (17.1 F).
Coldest night (TNn) at Ojos Negros by year
Year
Coldest night (TNn)
1948
-6.1 C (21.0 F)
1949
-9.4 C (15.1 F)
1950
-6.1 C (21.0 F)
1951
-7.2 C (19.0 F)
1952
-6.7 C (19.9 F)
1953
-9.4 C (15.1 F)
1954
-10.0 C (14.0 F)
1955
-8.3 C (17.1 F)
1956
-1.1 C (30.0 F)
1957
-9.4 C (15.1 F)
1958
-9.4 C (15.1 F)
1959
-6.1 C (21.0 F)
1960
-5.0 C (23.0 F)
1961
-2.2 C (28.0 F)
1962
-6.1 C (21.0 F)
1963
-6.1 C (21.0 F)
1964
-5.0 C (23.0 F)
1965
-9.4 C (15.1 F)
1966
-14.4 C (6.1 F)
1967
-17.2 C (1.0 F)
1968
-12.2 C (10.0 F)
1969
-9.4 C (15.1 F)
1970
-13.3 C (8.1 F)
1971
-10.0 C (14.0 F)
1972
-12.2 C (10.0 F)
1973
-10.0 C (14.0 F)
1974
-12.2 C (10.0 F)
1975
-12.2 C (10.0 F)
1976
-13.3 C (8.1 F)
1977
-10.0 C (14.0 F)
1978
-9.4 C (15.1 F)
1979
-8.3 C (17.1 F)
1980
-7.2 C (19.0 F)
1981
-10.0 C (14.0 F)
1982
-8.3 C (17.1 F)
1983
-5.0 C (23.0 F)
1984
-5.0 C (23.0 F)
1985
-4.4 C (24.1 F)
1986
-4.4 C (24.1 F)
1987
-4.4 C (24.1 F)
1988
-6.1 C (21.0 F)
1989
-6.1 C (21.0 F)
1990
-7.2 C (19.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ojos Negros, 1948 to 1990. The record is 84.8 mm (3.3 in) in 1977, marked on the chart; the median year is 30.0 mm (1.2 in).
Wettest day (Rx1day) at Ojos Negros by year
Year
Wettest day (Rx1day)
1948
9.9 mm (0.39 in)
1949
36.8 mm (1.4 in)
1950
13.0 mm (0.5 in)
1951
29.0 mm (1.1 in)
1952
33.8 mm (1.3 in)
1953
29.5 mm (1.2 in)
1954
49.3 mm (1.9 in)
1955
15.7 mm (0.6 in)
1956
15.7 mm (0.6 in)
1957
32.8 mm (1.3 in)
1958
33.8 mm (1.3 in)
1959
19.1 mm (0.8 in)
1960
27.9 mm (1.1 in)
1961
16.8 mm (0.7 in)
1962
26.9 mm (1.1 in)
1963
22.9 mm (0.9 in)
1964
20.3 mm (0.8 in)
1965
33.3 mm (1.3 in)
1966
26.4 mm (1.0 in)
1967
33.8 mm (1.3 in)
1968
25.9 mm (1.0 in)
1969
45.0 mm (1.8 in)
1970
36.8 mm (1.4 in)
1971
14.0 mm (0.6 in)
1972
17.3 mm (0.7 in)
1973
21.8 mm (0.9 in)
1974
31.8 mm (1.3 in)
1975
30.0 mm (1.2 in)
1976
27.9 mm (1.1 in)
1977
84.8 mm (3.3 in)
1978
45.0 mm (1.8 in)
1979
31.8 mm (1.3 in)
1980
66.8 mm (2.6 in)
1981
34.8 mm (1.4 in)
1982
40.9 mm (1.6 in)
1983
42.9 mm (1.7 in)
1984
33.3 mm (1.3 in)
1985
25.1 mm (1.0 in)
1986
42.9 mm (1.7 in)
1987
30.2 mm (1.2 in)
1988
47.0 mm (1.9 in)
1989
13.0 mm (0.5 in)
1990
15.0 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ojos Negros, 1948 to 1990. The record is 138.5 mm (5.5 in) in 1980, marked on the chart; the median year is 47.0 mm (1.9 in).
Wettest five days (Rx5day) at Ojos Negros by year
Year
Wettest five days (Rx5day)
1948
17.8 mm (0.7 in)
1949
90.4 mm (3.6 in)
1950
25.7 mm (1.0 in)
1951
43.8 mm (1.7 in)
1952
48.6 mm (1.9 in)
1953
29.5 mm (1.2 in)
1954
73.1 mm (2.9 in)
1955
29.7 mm (1.2 in)
1956
15.7 mm (0.6 in)
1957
93.6 mm (3.7 in)
1958
54.9 mm (2.2 in)
1959
33.3 mm (1.3 in)
1960
27.9 mm (1.1 in)
1961
32.6 mm (1.3 in)
1962
41.1 mm (1.6 in)
1963
22.9 mm (0.9 in)
1964
29.0 mm (1.1 in)
1965
54.6 mm (2.1 in)
1966
58.7 mm (2.3 in)
1967
76.2 mm (3.0 in)
1968
27.2 mm (1.1 in)
1969
58.5 mm (2.3 in)
1970
59.4 mm (2.3 in)
1971
24.2 mm (1.0 in)
1972
35.9 mm (1.4 in)
1973
36.4 mm (1.4 in)
1974
66.4 mm (2.6 in)
1975
44.7 mm (1.8 in)
1976
54.1 mm (2.1 in)
1977
99.8 mm (3.9 in)
1978
75.2 mm (3.0 in)
1979
54.9 mm (2.2 in)
1980
138.5 mm (5.5 in)
1981
69.3 mm (2.7 in)
1982
49.8 mm (2.0 in)
1983
91.0 mm (3.6 in)
1984
48.5 mm (1.9 in)
1985
35.6 mm (1.4 in)
1986
49.5 mm (1.9 in)
1987
38.9 mm (1.5 in)
1988
47.0 mm (1.9 in)
1989
18.8 mm (0.7 in)
1990
29.0 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ojos Negros, 1948 to 1990. The record is 228 days in 1966, marked on the chart; the median year is 101 days.
Longest dry spell (CDD) at Ojos Negros by year
Year
Longest dry spell (CDD)
1948
124 days
1949
189 days
1950
71 days
1951
62 days
1952
100 days
1953
191 days
1954
103 days
1955
92 days
1956
163 days
1957
68 days
1958
100 days
1959
92 days
1960
77 days
1961
111 days
1962
85 days
1963
143 days
1964
160 days
1965
119 days
1966
228 days
1967
80 days
1968
142 days
1969
187 days
1970
62 days
1971
85 days
1972
139 days
1973
139 days
1974
143 days
1975
99 days
1976
101 days
1977
94 days
1978
87 days
1979
116 days
1980
207 days
1981
73 days
1982
144 days
1983
96 days
1984
75 days
1985
84 days
1986
105 days
1987
36 days
1988
92 days
1989
129 days
1990
101 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
36 years with a frost
Across 36 years with a frost, the median last spring frost at Ojos Negros falls on 3 May and the median first autumn frost on 2 November, which leaves a median of 183 days between them.
Fitted over all years, the growing season changes by -14.3 days per decade at this station.
Frost dates and growing season at Ojos Negros
Measure
Median, all years
Earliest period
Recent period (1957 to 1990)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
8 May
n/a
+7.7 days per decade
First autumn frost
2 November
n/a
30 October
n/a
-6.6 days per decade
Growing days
183 days
n/a
171 days
n/a
-14.3 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
40 years, 1949 to 1990
A day with at least 28.5 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 76.9 mm (3.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Ojos Negros: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
28.5 mm (1.1 in)
5 years
40.7 mm (1.6 in)
10 years
49.1 mm (1.9 in)
25 years
60.0 mm (2.4 in)
50 years
68.4 mm (2.7 in)
Longer than the 40 years of record
100 years
76.9 mm (3.0 in)
Longer than the 40 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, 40 years of values from 1949 to 1990.
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: 84.8 mm (3.3 in) in 1977; 66.8 mm (2.6 in) in 1980; 49.3 mm (1.9 in) in 1954.
Download the Data
Data for Ojos Negros standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ojos Negros 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.