Rosslare 1971–2000 averages
TEMPERATURE (degrees Celsius)	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
mean daily max	8.6	8.5	9.7	11.0	13.3	16.0	18.1	18.2	16.5	13.7	10.9	9.4	12.8
mean daily min	4.1	4.1	4.9	6.0	8.4	10.7	12.6	12.8	11.3	9.1	6.3	5.1	7.9
mean temperature	6.4	6.3	7.3	8.5	10.8	13.3	15.4	15.5	13.9	11.4	8.6	7.3	10.4
absolute max.	13.0	14.1	15.8	20.1	21.1	25.4	26.2	25.9	22.0	21.5	15.4	14.0	26.2
min. maximum	-1.0	-0.2	3.1	5.3	6.1	9.6	13.1	13.0	11.3	7.7	3.7	1.8	-1.0
max. minimum	10.7	10.0	10.0	10.4	13.8	15.6	17.6	17.6	16.5	14.9	13.3	12.1	17.6
absolute min.	-4.4	-3.7	-2.5	-0.5	-0.3	4.7	6.7	6.3	2.6	1.3	-2.5	-3.0	-4.4
mean num. of days with air frost	1.9	1.4	0.5	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.4	1.3	5.6
mean num. of days with ground frost	10.0	8.2	6.2	3.9	0.9	0.1	0.0	0.0	0.1	0.9	4.8	7.6	42.6
mean 5cm soil	4.5	4.4	5.8	8.9	12.7	16.1	17.5	16.6	13.9	10.6	7.0	5.5	10.3
mean 10cm soil	4.8	4.6	5.8	8.3	11.8	15.1	16.7	15.9	13.6	10.7	7.3	5.8	10.0
mean 20cm soil	5.4	5.3	6.4	8.7	11.8	15.0	16.7	16.2	14.2	11.5	8.1	6.4	10.5
RELATIVE HUMIDITY (%)
mean at 0900UTC	86.0	85.7	84.7	81.7	81.6	81.8	82.7	83.7	84.0	85.3	85.9	86.6	84.1
mean at 1500UTC	81.4	79.5	77.5	76.0	77.3	77.5	77.3	77.4	76.9	78.8	80.0	82.5	78.5
SUNSHINE (hours)
mean daily duration	1.9	2.4	3.6	5.6	6.8	6.1	6.2	6.1	4.8	3.3	2.4	1.6	4.2
greatest daily duration	8.2	10.0	11.6	13.4	15.4	15.7	15.9	14.0	12.8	10.2	8.6	7.2	15.9
mean num. of days with no sun	10.8	8.1	5.5	2.9	1.5	2.0	1.5	1.7	3.0	5.9	8.6	11.3	62.7
RAINFALL (mm)
mean monthly total	96.2	70.6	67.9	54.2	53.0	49.8	48.4	75.4	75.9	100.8	97.2	100.7	890.1
greatest daily total	42.7	32.0	42.2	32.0	31.4	31.6	63.1	89.2	62.1	59.6	43.8	48.9	89.2
mean num. of days with >= 0.2mm	17	15	16	13	13	12	12	13	13	16	16	17	173
mean num. of days with >= 1.0mm	13	11	11	9	9	9	7	9	10	13	12	13	126
mean num. of days with >= 5.0mm	7	5	4	3	3	2	2	4	4	6	6	6	52
WIND (knots)
mean monthly speed	12.8	12.1	12.2	11.7	11.4	10.1	9.6	9.8	10.8	11.8	11.8	12.6	11.4
max. gust	76	76	66	75	66	51	50	54	65	96	74	80	96
max. mean 10-minute speed	46	44	42	52	40	38	35	36	47	56	48	50	56
mean num. of days with gales	2.1	1.1	0.8	0.9	0.3	0.2	0.1	0.1	0.3	0.6	0.9	1.2	8.6
WEATHER (mean no. of days with..)
snow or sleet	2.0	2.4	1.2	0.6	0.1	0.0	0.0	0.0	0.0	0.0	0.1	0.8	7.2
snow lying at 0900UTC	0.6	0.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.4
hail	1.7	0.9	2.2	1.9	0.9	0.3	0.1	0.1	0.1	0.3	0.9	1.3	10.6
thunder	0.4	0.2	0.2	0.2	0.6	0.8	0.9	0.7	0.4	0.6	0.3	0.4	5.7
fog	1.8	2.5	3.2	3.6	2.7	4.4	5.0	3.8	3.0	1.6	1.7	1.7	35.2