Dublin Airport 1981–2010 averages
TEMPERATURE (degrees Celsius)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
mean daily max	8.1	8.3	10.2	12.1	14.8	17.6	19.5	19.2	17.0	13.6	10.3	8.3	13.3
mean daily min	2.4	2.3	3.4	4.6	6.9	9.6	11.7	11.5	9.8	7.3	4.5	2.8	6.4
mean temperature	5.3	5.3	6.8	8.3	10.9	13.6	15.6	15.3	13.4	10.5	7.4	5.6	9.8
absolute max.	16.5	16.2	17.2	20.5	23.5	25.7	27.6	28.7	24.6	21.0	18.0	16.2	28.7
min. maximum	-3.1	-0.1	2.4	4.5	6.6	10.4	11.7	11.9	11.2	5.3	-1.8	-4.7	-4.7
max. minimum	11.8	11.9	11.9	12.8	13.2	16.2	19.0	18.2	17.3	15.2	12.8	12.9	19.0
absolute min.	-9.5	-6.7	-7.9	-4.0	-1.6	2.1	4.6	2.4	1.2	-3.3	-8.4	-12.2	-12.2
mean num. of days with air frost	6.4	6.5	3.8	2.4	0.3	0.0	0.0	0.0	0.0	0.5	3.0	6.4	29.4
mean num. of days with ground frost	15.0	14.0	12.0	10.0	3.0	0.0	0.0	0.0	0.0	4.0	10.0	14.0	82.0
mean 5cm soil	3.8	3.8	5.4	8.2	12.2	15.2	16.7	15.8	13.1	9.4	6.2	4.5	9.5
mean 10cm soil	4.1	4.1	5.5	7.9	11.5	14.6	16.2	15.4	13.0	9.7	6.6	4.8	9.4
mean 20cm soil	4.6	4.7	6.1	8.4	11.7	14.8	16.5	16.0	13.7	10.5	7.3	5.3	10.0
RELATIVE HUMIDITY (%)
mean at 0900UTC	87.0	86.4	84.0	79.5	76.9	76.7	78.5	81.0	83.4	85.5	88.5	88.0	83.0
mean at 1500UTC	80.6	75.7	71.0	68.3	68.0	68.3	69.0	69.3	71.5	75.1	80.3	83.1	73.3
SUNSHINE (hours)
mean daily duration	1.9	2.7	3.5	5.3	6.2	5.8	5.3	5.1	4.3	3.3	2.4	1.7	3.9
greatest daily duration	8.1	9.8	11.9	13.3	15.4	15.9	15.6	14.2	12.4	10.2	8.8	7.3	15.9
mean num. of days with no sun	9.1	6.2	4.7	2.5	2.0	1.9	1.4	1.5	2.6	4.8	7.3	10.5	54.6
RAINFALL (mm)
mean monthly total	62.6	48.8	52.7	54.1	59.5	66.7	56.2	73.3	59.5	79.0	72.9	72.7	758.0
greatest daily total	27.1	28.1	35.8	30.4	42.1	73.9	39.2	72.2	40.6	53.2	62.8	42.4	73.9
mean num. of days with >= 0.2mm	17	15	17	15	15	14	16	16	15	17	17	17	191
mean num. of days with >= 1.0mm	12	10	11	10	11	10	10	11	10	11	11	12	129
mean num. of days with >= 5.0mm	4	3	3	3	3	3	3	4	4	4	4	4	42
WIND (knots)
mean monthly speed	12.5	12.0	11.6	9.9	9.2	8.6	8.7	8.7	9.2	10.4	11.0	11.3	10.3
max. gust	80	73	66	59	58	53	54	56	59	69	66	76	80
max. mean 10-minute speed	53	49	45	39	39	38	36	37	36	51	43	55	55
mean num. of days with gales	2.3	1.5	1.1	0.1	0.1	0.1	0.1	0.1	0.2	0.5	0.8	1.3	8.2
WEATHER (mean no. of days with..)
snow or sleet	4.6	4.2	2.8	1.2	0.2	0.0	0.0	0.0	0.0	0.0	0.8	2.9	16.6
snow lying at 0900UTC	1.6	0.6	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.9	3.4
hail	1.2	1.5	2.0	1.9	1.3	0.1	0.2	0.1	0.1	0.3	0.3	0.7	9.7
thunder	0.3	0.2	0.3	0.2	0.9	0.8	0.8	0.9	0.3	0.3	0.2	0.2	5.5
fog	3.3	3.1	3.6	3.6	3.4	2.8	3.3	3.8	4.2	3.2	3.1	4.1	41.5