Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Loreto. 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 Loreto, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
29.4 C (84.9 F)
-8.3 C (17.1 F)
n/a
n/a
Feb
32.2 C (90.0 F)
-6.1 C (21.0 F)
n/a
n/a
Mar
34.4 C (93.9 F)
-5.0 C (23.0 F)
n/a
n/a
Apr
37.2 C (99.0 F)
0.0 C (32.0 F)
n/a
n/a
May
38.9 C (102.0 F)
2.8 C (37.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
5.0 C (41.0 F)
n/a
n/a
Jul
35.0 C (95.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
6.7 C (44.1 F)
n/a
n/a
Sep
35.0 C (95.0 F)
5.0 C (41.0 F)
n/a
n/a
Oct
32.8 C (91.0 F)
-1.7 C (28.9 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-8.9 C (16.0 F)
n/a
n/a
Dec
30.6 C (87.1 F)
-7.8 C (18.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Loreto still stand. 1996 holds the most, with 116.
Standing records at Loreto by the year they were set
Year set
Standing records
1963
13
1964
45
1965
34
1966
55
1967
60
1968
43
1969
41
1970
50
1971
25
1972
35
1973
50
1974
20
1975
26
1976
37
1977
23
1978
27
1979
34
1980
22
1981
12
1982
47
1983
42
1984
19
1985
17
1986
22
1987
41
1988
33
1989
29
1990
40
1991
45
1992
50
1994
19
1995
38
1996
116
1997
36
1998
12
1999
20
2000
14
2005
27
2006
16
2007
14
2008
20
2009
20
2010
29
2011
28
2012
18
All-Time Record Progression
4 new records
4 all-time records were set at Loreto between 13 January 1996 and 29 November 2011. Each dot is a new record.
When Loreto set new all-time records
Date
Kind
Detail
1996-01-13
Record low minimum temperature
Record low minimum temperature -7.8 C (18.0 F)
1996-01-14
Record low minimum temperature
Record low minimum temperature -8.3 C (17.1 F)
2010-01-15
Record low maximum temperature
Record low maximum temperature 5.6 C (42.1 F)
2011-11-29
Record low minimum temperature
Record low minimum temperature -8.9 C (16.0 F)
Wettest Day of Each Month
Jul: 90.4 mm (3.6 in)
The wettest day on record for each calendar month at Loreto. The most was 90.4 mm (3.6 in) on 15 July 1975.
Record daily precipitation for each month at Loreto
Month
Record daily precipitation (mm)
Date
Jan
42.9 mm (1.7 in)
12 January 1967
Feb
36.6 mm (1.4 in)
2 February 2010
Mar
41.9 mm (1.6 in)
3 March 1968
Apr
21.6 mm (0.9 in)
23 April 1996
May
57.9 mm (2.3 in)
25 May 1994
Jun
71.1 mm (2.8 in)
13 June 1994
Jul
90.4 mm (3.6 in)
15 July 1975
Aug
69.9 mm (2.8 in)
13 August 1970
Sep
84.8 mm (3.3 in)
14 September 1974
Oct
67.8 mm (2.7 in)
5 October 1989
Nov
34.5 mm (1.4 in)
13 November 1992
Dec
41.1 mm (1.6 in)
2 December 1979
Period of Record Coverage
1963 to 2012
Complete yearUnder 90 percent of days
45 years of record at Loreto, 1963 to 2012. 7 years have data for under 90 percent of days and are left out of rankings: 1963, 1974, 1980, 1981, 1982, 1986, 1989.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Loreto, 1964 to 2012. Blue stripes are years cooler than the station's own mean of 17.4 C (63.3 F); red stripes are warmer. The coolest year was 1996, at 14.1 C (57.3 F), and the warmest was 1991, at 18.3 C (64.9 F). The strongest colour marks a difference of 3.4 C (6.1 F).
Annual mean temperature at Loreto as warming stripes, 1964 to 2012
Year
Annual mean temperature
Difference from the station mean
1964
18.2 C
+0.79 C
1965
17.8 C
+0.41 C
1966
17.3 C
-0.12 C
1967
17.5 C
+0.09 C
1968
17.4 C
+0.03 C
1970
17.7 C
+0.32 C
1971
17.8 C
+0.35 C
1972
18.0 C
+0.63 C
1973
17.8 C
+0.35 C
1976
17.4 C
+0.00 C
1977
18.0 C
+0.58 C
1978
17.9 C
+0.48 C
1979
18.0 C
+0.59 C
1983
17.6 C
+0.17 C
1984
17.3 C
-0.12 C
1985
17.6 C
+0.20 C
1987
17.4 C
-0.01 C
1988
17.8 C
+0.40 C
1990
18.2 C
+0.78 C
1991
18.3 C
+0.87 C
1992
18.1 C
+0.70 C
1996
14.1 C
-3.35 C
1997
16.3 C
-1.15 C
1998
17.0 C
-0.45 C
1999
16.3 C
-1.08 C
2000
17.0 C
-0.38 C
2005
17.0 C
-0.46 C
2007
17.2 C
-0.18 C
2008
16.8 C
-0.61 C
2009
17.5 C
+0.07 C
2010
16.8 C
-0.62 C
2011
17.8 C
+0.37 C
2012
17.7 C
+0.28 C
The annual mean temperature here has fallen by 0.19 C (0.02 to 0.36) per decade over 1964 to 2012. In Fahrenheit: 0.34 F (0.03 to 0.65) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Loreto
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.19 C (-0.36 to -0.02) per decade
-0.34 F (-0.65 to -0.03) per decade
1964 to 2012
33
Fall
Mean daily maximum
-0.1 C (-0.3 to 0.1) per decade
-0.1 F (-0.5 to 0.3) per decade
1964 to 2012
33
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.5 to -0.1) per decade
-0.6 F (-0.9 to -0.2) per decade
1964 to 2012
33
Fall
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
1963 to 2012
Yearly extremes at Loreto: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1966
35.0 C (95.0 F)
45
Coldest night (TNn)
-8.9 C (16.0 F)
2011
-4.4 C (24.1 F)
45
Wettest day (Rx1day)
90.4 mm (3.6 in)
1975
46.5 mm (1.8 in)
45
Wettest five days (Rx5day)
160.2 mm (6.3 in)
1975
90.9 mm (3.6 in)
45
Longest dry spell (CDD)
171 days
2011
76 days
45
Hottest day (TXx)
The hottest day of the year at Loreto, 1963 to 2012. The record is 38.9 C (102.0 F) in 1966, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Loreto by year
Year
Hottest day (TXx)
1963
31.7 C (89.1 F)
1964
36.7 C (98.1 F)
1965
35.6 C (96.1 F)
1966
38.9 C (102.0 F)
1967
37.8 C (100.0 F)
1968
36.1 C (97.0 F)
1969
32.8 C (91.0 F)
1970
35.0 C (95.0 F)
1971
35.0 C (95.0 F)
1972
33.9 C (93.0 F)
1973
36.7 C (98.1 F)
1974
35.0 C (95.0 F)
1975
35.0 C (95.0 F)
1976
35.0 C (95.0 F)
1977
35.0 C (95.0 F)
1978
35.0 C (95.0 F)
1979
35.0 C (95.0 F)
1980
36.7 C (98.1 F)
1981
33.9 C (93.0 F)
1982
36.7 C (98.1 F)
1983
37.2 C (99.0 F)
1984
33.3 C (91.9 F)
1985
34.4 C (93.9 F)
1986
35.0 C (95.0 F)
1987
35.0 C (95.0 F)
1988
35.0 C (95.0 F)
1989
36.7 C (98.1 F)
1990
37.2 C (99.0 F)
1991
36.1 C (97.0 F)
1992
35.6 C (96.1 F)
1994
34.4 C (93.9 F)
1995
35.0 C (95.0 F)
1996
31.7 C (89.1 F)
1997
31.7 C (89.1 F)
1998
34.4 C (93.9 F)
1999
33.9 C (93.0 F)
2000
32.2 C (90.0 F)
2005
36.7 C (98.1 F)
2006
33.3 C (91.9 F)
2007
35.0 C (95.0 F)
2008
33.9 C (93.0 F)
2009
35.0 C (95.0 F)
2010
35.6 C (96.1 F)
2011
37.8 C (100.0 F)
2012
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Loreto, 1963 to 2012. The record is -8.9 C (16.0 F) in 2011, marked on the chart; the median year is -4.4 C (24.1 F).
Coldest night (TNn) at Loreto by year
Year
Coldest night (TNn)
1963
-6.7 C (19.9 F)
1964
-4.4 C (24.1 F)
1965
-3.3 C (26.1 F)
1966
-6.1 C (21.0 F)
1967
-7.2 C (19.0 F)
1968
-3.3 C (26.1 F)
1969
-5.0 C (23.0 F)
1970
-3.3 C (26.1 F)
1971
-4.4 C (24.1 F)
1972
-1.1 C (30.0 F)
1973
-4.4 C (24.1 F)
1974
-4.4 C (24.1 F)
1975
-4.4 C (24.1 F)
1976
-3.3 C (26.1 F)
1977
-1.1 C (30.0 F)
1978
-2.2 C (28.0 F)
1979
-4.4 C (24.1 F)
1980
-1.1 C (30.0 F)
1981
-3.3 C (26.1 F)
1982
-1.1 C (30.0 F)
1983
-3.3 C (26.1 F)
1984
0.0 C (32.0 F)
1985
-5.6 C (21.9 F)
1986
-2.2 C (28.0 F)
1987
-5.0 C (23.0 F)
1988
-5.0 C (23.0 F)
1989
0.0 C (32.0 F)
1990
-3.3 C (26.1 F)
1991
-3.3 C (26.1 F)
1992
-2.2 C (28.0 F)
1994
-5.0 C (23.0 F)
1995
-6.7 C (19.9 F)
1996
-8.3 C (17.1 F)
1997
-7.8 C (18.0 F)
1998
-4.4 C (24.1 F)
1999
-4.4 C (24.1 F)
2000
-5.0 C (23.0 F)
2005
-3.9 C (25.0 F)
2006
-7.2 C (19.0 F)
2007
-2.2 C (28.0 F)
2008
-5.0 C (23.0 F)
2009
-2.8 C (27.0 F)
2010
-6.1 C (21.0 F)
2011
-8.9 C (16.0 F)
2012
-4.4 C (24.1 F)
Wettest day (Rx1day)
The wettest day of the year at Loreto, 1963 to 2012. The record is 90.4 mm (3.6 in) in 1975, marked on the chart; the median year is 46.5 mm (1.8 in).
Wettest day (Rx1day) at Loreto by year
Year
Wettest day (Rx1day)
1963
25.9 mm (1.0 in)
1964
47.0 mm (1.9 in)
1965
34.3 mm (1.4 in)
1966
38.4 mm (1.5 in)
1967
42.9 mm (1.7 in)
1968
41.9 mm (1.6 in)
1969
31.8 mm (1.3 in)
1970
69.9 mm (2.8 in)
1971
56.9 mm (2.2 in)
1972
42.4 mm (1.7 in)
1973
64.5 mm (2.5 in)
1974
84.8 mm (3.3 in)
1975
90.4 mm (3.6 in)
1976
39.9 mm (1.6 in)
1977
49.5 mm (1.9 in)
1978
33.8 mm (1.3 in)
1979
41.1 mm (1.6 in)
1980
38.4 mm (1.5 in)
1981
24.9 mm (1.0 in)
1982
27.4 mm (1.1 in)
1983
87.1 mm (3.4 in)
1984
45.5 mm (1.8 in)
1985
37.1 mm (1.5 in)
1986
71.1 mm (2.8 in)
1987
51.1 mm (2.0 in)
1988
62.2 mm (2.4 in)
1989
67.8 mm (2.7 in)
1990
47.5 mm (1.9 in)
1991
39.4 mm (1.6 in)
1992
38.9 mm (1.5 in)
1994
71.1 mm (2.8 in)
1995
58.4 mm (2.3 in)
1996
51.6 mm (2.0 in)
1997
51.6 mm (2.0 in)
1998
49.8 mm (2.0 in)
1999
24.9 mm (1.0 in)
2000
27.7 mm (1.1 in)
2005
19.8 mm (0.8 in)
2006
70.6 mm (2.8 in)
2007
45.5 mm (1.8 in)
2008
47.2 mm (1.9 in)
2009
48.3 mm (1.9 in)
2010
54.6 mm (2.1 in)
2011
46.5 mm (1.8 in)
2012
24.1 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Loreto, 1963 to 2012. The record is 160.2 mm (6.3 in) in 1975, marked on the chart; the median year is 90.9 mm (3.6 in).
Wettest five days (Rx5day) at Loreto by year
Year
Wettest five days (Rx5day)
1963
74.9 mm (2.9 in)
1964
61.3 mm (2.4 in)
1965
78.3 mm (3.1 in)
1966
95.3 mm (3.8 in)
1967
92.0 mm (3.6 in)
1968
92.5 mm (3.6 in)
1969
36.6 mm (1.4 in)
1970
150.0 mm (5.9 in)
1971
86.9 mm (3.4 in)
1972
70.6 mm (2.8 in)
1973
151.1 mm (5.9 in)
1974
113.8 mm (4.5 in)
1975
160.2 mm (6.3 in)
1976
96.2 mm (3.8 in)
1977
96.0 mm (3.8 in)
1978
63.3 mm (2.5 in)
1979
59.7 mm (2.4 in)
1980
49.6 mm (2.0 in)
1981
42.0 mm (1.7 in)
1982
51.7 mm (2.0 in)
1983
112.0 mm (4.4 in)
1984
54.6 mm (2.1 in)
1985
71.6 mm (2.8 in)
1986
90.9 mm (3.6 in)
1987
77.3 mm (3.0 in)
1988
97.6 mm (3.8 in)
1989
82.8 mm (3.3 in)
1990
101.4 mm (4.0 in)
1991
139.3 mm (5.5 in)
1992
54.6 mm (2.1 in)
1994
134.1 mm (5.3 in)
1995
121.9 mm (4.8 in)
1996
80.4 mm (3.2 in)
1997
108.3 mm (4.3 in)
1998
74.7 mm (2.9 in)
1999
42.2 mm (1.7 in)
2000
49.5 mm (1.9 in)
2005
31.9 mm (1.3 in)
2006
115.8 mm (4.6 in)
2007
110.2 mm (4.3 in)
2008
140.7 mm (5.5 in)
2009
94.1 mm (3.7 in)
2010
127.8 mm (5.0 in)
2011
91.1 mm (3.6 in)
2012
41.4 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Loreto, 1963 to 2012. The record is 171 days in 2011, marked on the chart; the median year is 76 days.
Longest dry spell (CDD) at Loreto by year
Year
Longest dry spell (CDD)
1963
41 days
1964
76 days
1965
54 days
1966
58 days
1967
52 days
1968
76 days
1969
158 days
1970
156 days
1971
132 days
1972
49 days
1973
75 days
1974
79 days
1975
89 days
1976
75 days
1977
80 days
1978
71 days
1979
100 days
1980
51 days
1981
33 days
1982
52 days
1983
144 days
1984
95 days
1985
43 days
1986
53 days
1987
60 days
1988
65 days
1989
146 days
1990
76 days
1991
123 days
1992
28 days
1994
86 days
1995
81 days
1996
113 days
1997
36 days
1998
114 days
1999
84 days
2000
66 days
2005
111 days
2006
102 days
2007
58 days
2008
80 days
2009
76 days
2010
79 days
2011
171 days
2012
69 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 Loreto falls on 22 February and the median first autumn frost on 26 November, which leaves a median of 278 days between them.
Fitted over all years, the growing season changes by -5.6 days per decade at this station.
Frost dates and growing season at Loreto
Measure
Median, all years
Earliest period
Recent period (1964 to 2012)
Recent against earliest
Fitted trend
Last spring frost
22 February
n/a
22 February
n/a
0.0 days per decade
First autumn frost
26 November
n/a
26 November
n/a
-5.6 days per decade
Growing days
278 days
n/a
278 days
n/a
-5.6 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.
Rainfall Return Levels
39 years, 1964 to 2012
A day with at least 46.4 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 95.2 mm (3.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Loreto: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.4 mm (1.8 in)
5 years
60.8 mm (2.4 in)
10 years
69.7 mm (2.7 in)
25 years
80.5 mm (3.2 in)
50 years
88.0 mm (3.5 in)
Longer than the 39 years of record
100 years
95.2 mm (3.7 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 1964 to 2012.
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: 90.4 mm (3.6 in) in 1975; 87.1 mm (3.4 in) in 1983; 71.1 mm (2.8 in) in 1994.
Download the Data
Data for Loreto standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Loreto 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.