Record envelope, standing records and threshold days for Lough Navar Forest (UKE00105878), United Kingdom, with 66 years of record.
Key Facts for Lough Navar Forest
Lough Navar Forest (UKE00105878) is a weather station in United Kingdom at 54.44 latitude and -7.90 longitude, 126 m (413 ft) above sea level.
The station reports from 1961 to 2026, 66 years of record.
1,464 records set at Lough Navar Forest still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Lough Navar Forest set a daily record high maximum temperature of 27.2 C (81.0 F) on 15 July 2026.
About the Station
Location: United Kingdom, 54.44 latitude, -7.90 longitude.
Elevation: 126 m (413 ft).
Period of record: 1961 to 2026, 66 years.
Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
6 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 Lough Navar Forest. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Lough Navar Forest, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.5 C (56.3 F)
-12.9 C (8.8 F)
11.4 C (52.5 F)
-4.4 C (24.1 F)
Feb
15.4 C (59.7 F)
-10.5 C (13.1 F)
13.0 C (55.4 F)
-5.3 C (22.5 F)
Mar
20.0 C (68.0 F)
-11.6 C (11.1 F)
15.6 C (60.1 F)
-3.9 C (25.0 F)
Apr
24.2 C (75.6 F)
-7.3 C (18.9 F)
19.7 C (67.5 F)
-2.4 C (27.7 F)
May
26.5 C (79.7 F)
-4.8 C (23.4 F)
24.8 C (76.6 F)
-2.6 C (27.3 F)
Jun
29.7 C (85.5 F)
-2.4 C (27.7 F)
29.0 C (84.2 F)
2.1 C (35.8 F)
Jul
29.8 C (85.6 F)
1.0 C (33.8 F)
27.2 C (81.0 F)
5.7 C (42.3 F)
Aug
28.0 C (82.4 F)
-0.7 C (30.7 F)
23.3 C (73.9 F)
1.1 C (34.0 F)
Sep
26.6 C (79.9 F)
-2.6 C (27.3 F)
n/a
n/a
Oct
20.7 C (69.3 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
16.8 C (62.2 F)
-8.4 C (16.9 F)
n/a
n/a
Dec
14.3 C (57.7 F)
-14.5 C (5.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Lough Navar Forest still stand. 2010 holds the most, with 70.
Standing records at Lough Navar Forest by the year they were set
Year set
Standing records
1961
5
1962
12
1963
17
1964
10
1965
22
1966
19
1967
6
1968
18
1969
31
1970
11
1971
26
1972
21
1973
23
1974
16
1975
20
1976
23
1977
17
1978
17
1979
26
1980
13
1981
18
1982
15
1983
30
1984
33
1985
46
1986
44
1987
33
1988
14
1989
28
1990
19
1991
22
1992
17
1993
23
1994
22
1995
31
1996
17
1997
20
1998
26
1999
20
2000
16
2001
9
2002
11
2003
18
2004
17
2005
19
2006
22
2007
37
2008
25
2009
11
2010
70
2011
26
2012
30
2013
33
2014
6
2015
23
2016
17
2017
19
2018
27
2019
27
2020
16
2021
26
2022
31
2023
25
2024
32
2025
27
2026
13
All-Time Record Progression
10 new records
10 all-time records were set at Lough Navar Forest between 27 December 1995 and 23 July 2019. Each dot is a new record.
When Lough Navar Forest set new all-time records
Date
Kind
Detail
1995-12-27
Record low maximum temperature
Record low maximum temperature -4.3 C (24.3 F)
2006-07-18
Record high maximum temperature
Record high maximum temperature 29.7 C (85.5 F)
2006-07-19
Record high maximum temperature
Record high maximum temperature 29.8 C (85.6 F)
2010-12-20
Record low maximum temperature
Record low maximum temperature -5.4 C (22.3 F)
2010-12-21
Record low maximum temperature
Record low maximum temperature -5.6 C (21.9 F)
2010-12-22
Record low minimum temperature
Record low minimum temperature -13.2 C (8.2 F)
2010-12-24
Record low minimum temperature
Record low minimum temperature -13.7 C (7.3 F)
2010-12-25
Record low minimum temperature
Record low minimum temperature -14.5 C (5.9 F)
2014-07-23
Record high minimum temperature
Record high minimum temperature 17.1 C (62.8 F)
2019-07-23
Record high minimum temperature
Record high minimum temperature 17.6 C (63.7 F)
Wettest Day of Each Month
Oct: 75.0 mm (3.0 in)
The wettest day on record for each calendar month at Lough Navar Forest. The most was 75.0 mm (3.0 in) on 31 October 1968.
Record daily precipitation for each month at Lough Navar Forest
Month
Record daily precipitation (mm)
Date
Jan
39.6 mm (1.6 in)
8 January 1965
Feb
51.4 mm (2.0 in)
8 February 2020
Mar
49.4 mm (1.9 in)
3 March 2017
Apr
43.2 mm (1.7 in)
6 April 2001
May
47.1 mm (1.9 in)
25 May 1985
Jun
58.1 mm (2.3 in)
7 June 2012
Jul
61.6 mm (2.4 in)
5 July 1976
Aug
72.2 mm (2.8 in)
15 August 1970
Sep
44.5 mm (1.8 in)
1 September 1988
Oct
75.0 mm (3.0 in)
31 October 1968
Nov
60.0 mm (2.4 in)
14 November 2015
Dec
53.0 mm (2.1 in)
20 December 1991
Period of Record Coverage
1961 to 2026
Complete yearUnder 90 percent of days
66 years of record at Lough Navar Forest, 1961 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1961, 1982, 2017, 2026.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Lough Navar Forest, 1962 to 2025. Blue stripes are years cooler than the station's own mean of 8.3 C (47.0 F); red stripes are warmer. The coolest year was 1986, at 7.2 C (44.9 F), and the warmest was 2023, at 9.3 C (48.7 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Lough Navar Forest as warming stripes, 1962 to 2025
Year
Annual mean temperature
Difference from the station mean
1962
8.0 C
-0.37 C
1963
7.8 C
-0.52 C
1964
8.7 C
+0.37 C
1965
7.8 C
-0.57 C
1967
8.4 C
+0.12 C
1968
8.4 C
+0.08 C
1969
8.0 C
-0.31 C
1970
8.3 C
-0.05 C
1971
8.6 C
+0.24 C
1972
7.3 C
-1.02 C
1974
8.0 C
-0.29 C
1975
8.8 C
+0.46 C
1976
8.5 C
+0.14 C
1977
8.1 C
-0.27 C
1978
8.2 C
-0.09 C
1979
7.3 C
-1.02 C
1980
8.3 C
-0.05 C
1981
8.2 C
-0.16 C
1983
8.6 C
+0.31 C
1984
7.9 C
-0.38 C
1985
7.3 C
-0.98 C
1986
7.2 C
-1.13 C
1987
7.8 C
-0.56 C
1988
8.3 C
+0.02 C
1989
8.4 C
+0.10 C
1990
8.5 C
+0.21 C
1993
7.9 C
-0.46 C
1994
8.0 C
-0.37 C
1995
8.5 C
+0.21 C
1996
7.6 C
-0.74 C
1997
8.8 C
+0.45 C
1998
8.6 C
+0.23 C
1999
8.6 C
+0.24 C
2000
8.2 C
-0.14 C
2001
8.2 C
-0.17 C
2002
8.4 C
+0.07 C
2003
8.5 C
+0.13 C
2004
8.7 C
+0.38 C
2005
9.0 C
+0.64 C
2006
9.1 C
+0.75 C
2007
9.3 C
+0.94 C
2008
8.4 C
+0.03 C
2009
8.4 C
+0.03 C
2010
7.3 C
-1.05 C
2011
8.7 C
+0.33 C
2012
8.4 C
+0.10 C
2013
8.5 C
+0.20 C
2014
8.9 C
+0.60 C
2015
8.2 C
-0.14 C
2016
8.7 C
+0.37 C
2019
8.7 C
+0.39 C
2020
8.6 C
+0.24 C
2021
8.9 C
+0.54 C
2023
9.3 C
+0.95 C
2024
8.7 C
+0.42 C
2025
9.1 C
+0.77 C
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1962 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Lough Navar Forest
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.3) per decade
1962 to 2025
56
Rise
Mean daily maximum
0.2 C (0.2 to 0.3) per decade
0.4 F (0.3 to 0.5) per decade
1962 to 2025
56
Rise
Mean daily minimum
0.03 C (-0.05 to 0.11) per decade
0.1 F (-0.1 to 0.2) per decade
1962 to 2025
56
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
1961 to 2026
Yearly extremes at Lough Navar Forest: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
29.8 C (85.6 F)
2006
25.5 C (77.8 F)
66
Coldest night (TNn)
-14.5 C (5.9 F)
2010
-7.5 C (18.4 F)
66
Wettest day (Rx1day)
75.0 mm (3.0 in)
1968
39.5 mm (1.6 in)
65
Wettest five days (Rx5day)
184.2 mm (7.3 in)
1991
85.4 mm (3.4 in)
65
Longest dry spell (CDD)
32 days
1986
15 days
65
Hottest day (TXx)
The hottest day of the year at Lough Navar Forest, 1961 to 2026. The record is 29.8 C (85.6 F) in 2006, marked on the chart; the median year is 25.5 C (77.8 F).
Hottest day (TXx) at Lough Navar Forest by year
Year
Hottest day (TXx)
1961
20.0 C (68.0 F)
1962
22.2 C (72.0 F)
1963
26.1 C (79.0 F)
1964
22.8 C (73.0 F)
1965
22.2 C (72.0 F)
1966
22.8 C (73.0 F)
1967
23.3 C (73.9 F)
1968
25.0 C (77.0 F)
1969
26.5 C (79.7 F)
1970
25.8 C (78.4 F)
1971
25.0 C (77.0 F)
1972
26.6 C (79.9 F)
1973
26.8 C (80.2 F)
1974
23.9 C (75.0 F)
1975
27.9 C (82.2 F)
1976
28.8 C (83.8 F)
1977
26.5 C (79.7 F)
1978
24.2 C (75.6 F)
1979
25.0 C (77.0 F)
1980
23.1 C (73.6 F)
1981
24.0 C (75.2 F)
1982
26.1 C (79.0 F)
1983
28.7 C (83.7 F)
1984
26.4 C (79.5 F)
1985
22.6 C (72.7 F)
1986
24.3 C (75.7 F)
1987
23.2 C (73.8 F)
1988
23.9 C (75.0 F)
1989
28.4 C (83.1 F)
1990
25.7 C (78.3 F)
1991
25.4 C (77.7 F)
1992
24.1 C (75.4 F)
1993
24.1 C (75.4 F)
1994
23.0 C (73.4 F)
1995
28.6 C (83.5 F)
1996
25.0 C (77.0 F)
1997
25.5 C (77.9 F)
1998
24.5 C (76.1 F)
1999
26.9 C (80.4 F)
2000
25.7 C (78.3 F)
2001
24.7 C (76.5 F)
2002
24.6 C (76.3 F)
2003
27.7 C (81.9 F)
2004
24.3 C (75.7 F)
2005
28.1 C (82.6 F)
2006
29.8 C (85.6 F)
2007
26.0 C (78.8 F)
2008
25.3 C (77.5 F)
2009
26.5 C (79.7 F)
2010
24.9 C (76.8 F)
2011
22.6 C (72.7 F)
2012
26.5 C (79.7 F)
2013
28.8 C (83.8 F)
2014
26.6 C (79.9 F)
2015
23.3 C (73.9 F)
2016
27.4 C (81.3 F)
2017
26.2 C (79.2 F)
2018
29.7 C (85.5 F)
2019
25.2 C (77.4 F)
2020
24.9 C (76.8 F)
2021
29.5 C (85.1 F)
2022
28.8 C (83.8 F)
2023
26.6 C (79.9 F)
2024
24.3 C (75.7 F)
2025
28.7 C (83.7 F)
2026
29.0 C (84.2 F)
Coldest night (TNn)
The coldest night of the year at Lough Navar Forest, 1961 to 2026. The record is -14.5 C (5.9 F) in 2010, marked on the chart; the median year is -7.5 C (18.4 F).
Coldest night (TNn) at Lough Navar Forest by year
Year
Coldest night (TNn)
1961
-7.8 C (18.0 F)
1962
-7.2 C (19.0 F)
1963
-9.4 C (15.1 F)
1964
-4.4 C (24.1 F)
1965
-10.0 C (14.0 F)
1966
-4.4 C (24.1 F)
1967
-5.6 C (21.9 F)
1968
-7.2 C (19.0 F)
1969
-10.5 C (13.1 F)
1970
-8.3 C (17.1 F)
1971
-7.0 C (19.4 F)
1972
-11.1 C (12.0 F)
1973
-9.0 C (15.8 F)
1974
-4.0 C (24.8 F)
1975
-5.7 C (21.7 F)
1976
-5.4 C (22.3 F)
1977
-7.5 C (18.5 F)
1978
-8.6 C (16.5 F)
1979
-12.1 C (10.2 F)
1980
-8.1 C (17.4 F)
1981
-10.4 C (13.3 F)
1982
-12.4 C (9.7 F)
1983
-8.4 C (16.9 F)
1984
-12.9 C (8.8 F)
1985
-11.9 C (10.6 F)
1986
-11.6 C (11.1 F)
1987
-11.2 C (11.8 F)
1988
-8.1 C (17.4 F)
1989
-5.9 C (21.4 F)
1990
-6.1 C (21.0 F)
1991
-8.0 C (17.6 F)
1992
-7.9 C (17.8 F)
1993
-7.2 C (19.0 F)
1994
-5.5 C (22.1 F)
1995
-11.7 C (10.9 F)
1996
-7.6 C (18.3 F)
1997
-5.3 C (22.5 F)
1998
-5.9 C (21.4 F)
1999
-7.0 C (19.4 F)
2000
-7.8 C (18.0 F)
2001
-6.3 C (20.7 F)
2002
-8.7 C (16.3 F)
2003
-7.9 C (17.8 F)
2004
-5.6 C (21.9 F)
2005
-5.2 C (22.6 F)
2006
-6.4 C (20.5 F)
2007
-9.2 C (15.4 F)
2008
-6.4 C (20.5 F)
2009
-10.7 C (12.7 F)
2010
-14.5 C (5.9 F)
2011
-8.9 C (16.0 F)
2012
-6.9 C (19.6 F)
2013
-7.7 C (18.1 F)
2014
-7.1 C (19.2 F)
2015
-5.4 C (22.3 F)
2016
-7.8 C (18.0 F)
2017
-7.1 C (19.2 F)
2018
-6.5 C (20.3 F)
2019
-4.8 C (23.4 F)
2020
-4.8 C (23.4 F)
2021
-6.2 C (20.8 F)
2022
-9.4 C (15.1 F)
2023
-8.3 C (17.1 F)
2024
-6.6 C (20.1 F)
2025
-7.2 C (19.0 F)
2026
-5.3 C (22.5 F)
Wettest day (Rx1day)
The wettest day of the year at Lough Navar Forest, 1961 to 2026. The record is 75.0 mm (3.0 in) in 1968, marked on the chart; the median year is 39.5 mm (1.6 in).
Wettest day (Rx1day) at Lough Navar Forest by year
Year
Wettest day (Rx1day)
1961
39.4 mm (1.6 in)
1962
n/a
1963
36.8 mm (1.4 in)
1964
37.6 mm (1.5 in)
1965
39.6 mm (1.6 in)
1966
39.4 mm (1.6 in)
1967
26.9 mm (1.1 in)
1968
75.0 mm (3.0 in)
1969
45.6 mm (1.8 in)
1970
72.2 mm (2.8 in)
1971
48.6 mm (1.9 in)
1972
51.0 mm (2.0 in)
1973
31.6 mm (1.2 in)
1974
24.9 mm (1.0 in)
1975
28.9 mm (1.1 in)
1976
61.6 mm (2.4 in)
1977
28.2 mm (1.1 in)
1978
47.5 mm (1.9 in)
1979
52.4 mm (2.1 in)
1980
28.8 mm (1.1 in)
1981
37.9 mm (1.5 in)
1982
47.1 mm (1.9 in)
1983
40.4 mm (1.6 in)
1984
34.6 mm (1.4 in)
1985
47.1 mm (1.9 in)
1986
52.4 mm (2.1 in)
1987
55.5 mm (2.2 in)
1988
44.5 mm (1.8 in)
1989
55.4 mm (2.2 in)
1990
35.1 mm (1.4 in)
1991
53.0 mm (2.1 in)
1992
31.4 mm (1.2 in)
1993
30.3 mm (1.2 in)
1994
27.0 mm (1.1 in)
1995
42.4 mm (1.7 in)
1996
35.0 mm (1.4 in)
1997
36.8 mm (1.4 in)
1998
41.4 mm (1.6 in)
1999
48.2 mm (1.9 in)
2000
37.6 mm (1.5 in)
2001
43.2 mm (1.7 in)
2002
50.1 mm (2.0 in)
2003
33.2 mm (1.3 in)
2004
37.0 mm (1.5 in)
2005
39.5 mm (1.6 in)
2006
40.4 mm (1.6 in)
2007
33.8 mm (1.3 in)
2008
54.1 mm (2.1 in)
2009
43.0 mm (1.7 in)
2010
39.4 mm (1.6 in)
2011
38.0 mm (1.5 in)
2012
58.1 mm (2.3 in)
2013
31.3 mm (1.2 in)
2014
46.6 mm (1.8 in)
2015
60.0 mm (2.4 in)
2016
23.1 mm (0.9 in)
2017
49.4 mm (1.9 in)
2018
24.2 mm (1.0 in)
2019
41.2 mm (1.6 in)
2020
51.4 mm (2.0 in)
2021
39.8 mm (1.6 in)
2022
30.2 mm (1.2 in)
2023
30.0 mm (1.2 in)
2024
31.5 mm (1.2 in)
2025
38.7 mm (1.5 in)
2026
17.7 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Lough Navar Forest, 1961 to 2026. The record is 184.2 mm (7.3 in) in 1991, marked on the chart; the median year is 85.4 mm (3.4 in).
Wettest five days (Rx5day) at Lough Navar Forest by year
Year
Wettest five days (Rx5day)
1961
71.9 mm (2.8 in)
1962
n/a
1963
68.4 mm (2.7 in)
1964
86.8 mm (3.4 in)
1965
76.4 mm (3.0 in)
1966
93.4 mm (3.7 in)
1967
60.8 mm (2.4 in)
1968
118.6 mm (4.7 in)
1969
78.5 mm (3.1 in)
1970
89.8 mm (3.5 in)
1971
85.4 mm (3.4 in)
1972
78.4 mm (3.1 in)
1973
69.3 mm (2.7 in)
1974
63.5 mm (2.5 in)
1975
72.1 mm (2.8 in)
1976
84.3 mm (3.3 in)
1977
68.9 mm (2.7 in)
1978
100.3 mm (3.9 in)
1979
87.9 mm (3.5 in)
1980
67.1 mm (2.6 in)
1981
74.4 mm (2.9 in)
1982
76.3 mm (3.0 in)
1983
91.9 mm (3.6 in)
1984
83.0 mm (3.3 in)
1985
82.1 mm (3.2 in)
1986
103.8 mm (4.1 in)
1987
95.9 mm (3.8 in)
1988
103.5 mm (4.1 in)
1989
91.2 mm (3.6 in)
1990
102.2 mm (4.0 in)
1991
184.2 mm (7.3 in)
1992
73.9 mm (2.9 in)
1993
80.9 mm (3.2 in)
1994
73.4 mm (2.9 in)
1995
118.8 mm (4.7 in)
1996
101.0 mm (4.0 in)
1997
87.5 mm (3.4 in)
1998
96.8 mm (3.8 in)
1999
93.8 mm (3.7 in)
2000
79.2 mm (3.1 in)
2001
68.3 mm (2.7 in)
2002
112.4 mm (4.4 in)
2003
73.3 mm (2.9 in)
2004
94.8 mm (3.7 in)
2005
86.0 mm (3.4 in)
2006
72.3 mm (2.8 in)
2007
95.6 mm (3.8 in)
2008
80.5 mm (3.2 in)
2009
101.7 mm (4.0 in)
2010
90.6 mm (3.6 in)
2011
100.3 mm (3.9 in)
2012
112.6 mm (4.4 in)
2013
83.2 mm (3.3 in)
2014
100.0 mm (3.9 in)
2015
105.9 mm (4.2 in)
2016
79.0 mm (3.1 in)
2017
79.9 mm (3.1 in)
2018
91.4 mm (3.6 in)
2019
87.9 mm (3.5 in)
2020
112.1 mm (4.4 in)
2021
135.5 mm (5.3 in)
2022
79.3 mm (3.1 in)
2023
72.2 mm (2.8 in)
2024
31.5 mm (1.2 in)
2025
52.2 mm (2.1 in)
2026
12.3 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Lough Navar Forest, 1961 to 2026. The record is 32 days in 1986, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Lough Navar Forest by year
Year
Longest dry spell (CDD)
1961
18 days
1962
n/a
1963
12 days
1964
16 days
1965
16 days
1966
13 days
1967
11 days
1968
14 days
1969
15 days
1970
14 days
1971
15 days
1972
17 days
1973
16 days
1974
20 days
1975
19 days
1976
19 days
1977
14 days
1978
10 days
1979
13 days
1980
16 days
1981
12 days
1982
14 days
1983
15 days
1984
13 days
1985
21 days
1986
32 days
1987
16 days
1988
23 days
1989
16 days
1990
11 days
1991
21 days
1992
13 days
1993
13 days
1994
11 days
1995
14 days
1996
13 days
1997
18 days
1998
15 days
1999
9 days
2000
13 days
2001
13 days
2002
16 days
2003
15 days
2004
15 days
2005
9 days
2006
17 days
2007
11 days
2008
17 days
2009
15 days
2010
16 days
2011
18 days
2012
14 days
2013
19 days
2014
16 days
2015
10 days
2016
12 days
2017
14 days
2018
20 days
2019
12 days
2020
18 days
2021
14 days
2022
19 days
2023
21 days
2024
10 days
2025
14 days
2026
20 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
56 years with a frost
Across 56 years with a frost, the median last spring frost at Lough Navar Forest falls on 23 May and the median first autumn frost on 4 October, which leaves a median of 134 days between them.
Fitted over all years, the growing season changes by -6.2 days per decade at this station.
Frost dates and growing season at Lough Navar Forest
Measure
Median, all years
Earliest period
Recent period (1993 to 2025)
Recent against earliest
Fitted trend
Last spring frost
23 May
n/a
26 May
n/a
+2.4 days per decade
First autumn frost
4 October
n/a
4 October
n/a
-3.8 days per decade
Growing days
134 days
n/a
131 days
n/a
-6.2 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
59 years, 1963 to 2021
A day with at least 40.9 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 73.5 mm (2.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Lough Navar Forest: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
40.9 mm (1.6 in)
5 years
51.0 mm (2.0 in)
10 years
57.2 mm (2.3 in)
25 years
64.2 mm (2.5 in)
50 years
69.1 mm (2.7 in)
100 years
73.5 mm (2.9 in)
Longer than the 59 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, 59 years of values from 1963 to 2021.
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: 75.0 mm (3.0 in) in 1968; 72.2 mm (2.8 in) in 1970; 61.6 mm (2.4 in) in 1976.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Lough Navar Forest, at 1984. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1984 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Lough Navar Forest, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1984
-0.4
-0.7
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2008 to 2025 against 1961 to 1990
Over 2008 to 2025, Lough Navar Forest had a mean temperature of 8.6 C (47.4 F) and 1,652.5 mm (65.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Alert Bay (Canada, 7,039 km away), Glenlee (United Kingdom, 249 km away) and Port Hardy A (Canada, 7,047 km away).
Climate twins of Lough Navar Forest: stations whose 1961 to 1990 climate is closest to its 2008 to 2025 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Lough Navar Forest standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lough Navar Forest 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.