Monthly Data Tables - Air-frost Hrs / hrs

Weather Variable:

Monthly Total Air-frost Hrs
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2026	77 ()	0.6 ()	0 ()	0 ()	0 ()	0 ()	0 ()	-	-	-	-	-	78 ()
2025	-	-	-	-	-	-	-	-	-	-	-	-	-
2024	-	-	-	-	-	-	-	-	-	-	-	-	-
2023	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	-	-	-	-	-	-	-	-	-	-	-	-	-
2021	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	-	-	-	-	-	-	-	-	-	-	-	-	-
2019	-	-	-	-	-	-	-	-	-	-	-	-	-
2018	-	-	-	-	-	-	-	-	-	-	-	-	-
2017	-	-	-	-	-	-	-	-	-	-	-	-	-
2016	-	-	-	-	-	-	-	-	-	-	-	-	-
2015	-	-	-	-	-	-	-	-	-	-	-	-	-
2014	-	-	-	-	-	-	-	-	-	-	-	-	-
2013	132 ()	12 ()	91 ()	12 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	6 ()	0 ()	253 ()
2012	24 ()	152 ()	0 ()	5 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	13 ()	66 ()	260 ()
2011	14 ()	5 ()	12 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	6 ()	38 ()
2010	185 ()	51 ()	35 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0.7 ()	70 ()	287 ()	629 ()
2009	-	71 ()	0.9 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	95 ()	167 ()
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Lowest	14 ()	0.6 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	38 ()
Highest	185 ()	152 ()	91 ()	12 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0.7 ()	70 ()	287 ()	629 ()
Mean	87 ()	49 ()	23 ()	3 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0.1 ()	18 ()	91 ()	237 ()

Air-frost Hrs: monthly totals for all months since 2009 in London, NW3.

Monthly Count Air-frost Hrs
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2026	9	1	0	0	0	0	0	-	-	-	-	-	10
2025	-	-	-	-	-	-	-	-	-	-	-	-	-
2024	-	-	-	-	-	-	-	-	-	-	-	-	-
2023	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	-	-	-	-	-	-	-	-	-	-	-	-	-
2021	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	-	-	-	-	-	-	-	-	-	-	-	-	-
2019	-	-	-	-	-	-	-	-	-	-	-	-	-
2018	-	-	-	-	-	-	-	-	-	-	-	-	-
2017	-	-	-	-	-	-	-	-	-	-	-	-	-
2016	-	-	-	-	-	-	-	-	-	-	-	-	-
2015	-	-	-	-	-	-	-	-	-	-	-	-	-
2014	-	-	-	-	-	-	-	-	-	-	-	-	-
2013	12	4	13	3	0	0	0	0	0	0	2	0	34
2012	5	12	0	1	0	0	0	0	0	0	1	7	26
2011	6	1	3	0	0	0	0	0	0	0	0	2	12
2010	15	10	5	0	0	0	0	0	0	2	6	21	59
2009	-	10	1	0	0	0	0	0	0	0	0	9	20
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Lowest	5	1	0	0	0	0	0	0	0	0	0	0	10
Highest	15	12	13	3	0	0	0	0	0	2	6	21	59
Mean	9.4	6.3	3.7	0.7	0	0	0	0	0	0.4	1.8	7.8	26.8

Air-frost Hrs: count of days with a value for all months since 2009 in London, NW3.

Monthly Lowest Air-frost Hrs
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2026	0	0	0	0	0	0	0	-	-	-	-	-	0
2025	-	-	-	-	-	-	-	-	-	-	-	-	-
2024	-	-	-	-	-	-	-	-	-	-	-	-	-
2023	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	-	-	-	-	-	-	-	-	-	-	-	-	-
2021	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	-	-	-	-	-	-	-	-	-	-	-	-	-
2019	-	-	-	-	-	-	-	-	-	-	-	-	-
2018	-	-	-	-	-	-	-	-	-	-	-	-	-
2017	-	-	-	-	-	-	-	-	-	-	-	-	-
2016	-	-	-	-	-	-	-	-	-	-	-	-	-
2015	-	-	-	-	-	-	-	-	-	-	-	-	-
2014	-	-	-	-	-	-	-	-	-	-	-	-	-
2013	0	0	0	0	0	0	0	0	0	0	0	0	0
2012	0	0	0	0	0	0	0	0	0	0	0	0	0
2011	0	0	0	0	0	0	0	0	0	0	0	0	0
2010	0	0	0	0	0	0	0	0	0	0	0	0	0
2009	-	0	0	0	0	0	0	0	0	0	0	0	0
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Lowest	0	0	0	0	0	0	0	0	0	0	0	0	0
Highest	0	0	0	0	0	0	0	0	0	0	0	0	0
Mean	0	0	0	0	0	0	0	0	0	0	0	0	0

Air-frost Hrs: lowest daily value each month for all months since 2009 in London, NW3.

Monthly Highest Air-frost Hrs
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2026	18	0.6	0	0	0	0	0	-	-	-	-	-	18
2025	-	-	-	-	-	-	-	-	-	-	-	-	-
2024	-	-	-	-	-	-	-	-	-	-	-	-	-
2023	-	-	-	-	-	-	-	-	-	-	-	-	-
2022	-	-	-	-	-	-	-	-	-	-	-	-	-
2021	-	-	-	-	-	-	-	-	-	-	-	-	-
2020	-	-	-	-	-	-	-	-	-	-	-	-	-
2019	-	-	-	-	-	-	-	-	-	-	-	-	-
2018	-	-	-	-	-	-	-	-	-	-	-	-	-
2017	-	-	-	-	-	-	-	-	-	-	-	-	-
2016	-	-	-	-	-	-	-	-	-	-	-	-	-
2015	-	-	-	-	-	-	-	-	-	-	-	-	-
2014	-	-	-	-	-	-	-	-	-	-	-	-	-
2013	24	6	20	6	0	0	0	0	0	0	6	0	24
2012	10	20	0	5	0	0	0	0	0	0	13	14	20
2011	5	5	7	0	0	0	0	0	0	0	0	4	7
2010	22	10	14	0	0	0	0	0	0	0.7	19	24	24
2009	-	17	0.9	0	0	0	0	0	0	0	0	20	20
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Lowest	5	0.6	0	0	0	0	0	0	0	0	0	0	7
Highest	24	20	20	6	0	0	0	0	0	0.7	19	24	24
Mean	16	10	7	2	0	0	0	0	0	0.1	8	12	19

Air-frost Hrs: highest daily value each month for all months since 2009 in London, NW3.

Figures in brackets refer to departure from recent average conditions (the anomaly for the current month is unadjusted for the month's degree of completeness).