Monthly Data

1		Athenry	14		Knock Airport
2		Ballyhaise	15		Mace Head
3		Belmullet	16		Malin Head
4		Carlow Oakpark	17		Markree
5		Baldonnel - Casement Aerodrome	18		Mount Dillon
6		Claremorris	19		Mullingar
7		Cork Airport	20		Newport
8		Dublin Airport	21		Phoenix Park
9		Dunsany	22		Roches Point
10		Fermoy Moorepark	23		Shannon Airport
11		Finner	24		Sherkin Island
12		Gurteen Agri College	25		Valentia Observatory
13		Johnstown

Monthly values for Valentia_Observatory up to 23-oct-2017
Total rainfall in millimetres for Valentia_Observatory

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
2017	167.2	138.7	135.1	51.4	77.8	141.5	108.4	102.8	204.4	145.6			1272.9
2016	293.8	190.6	104.6	104.0	77.9	108.0	83.3	105.1	182.7	186.4	76.7	103.8	1616.9
2015	199.4	108.1	135.2	54.0	127.6	81.4	120.5	126.0	148.9	96.1	199.9	339.0	1736.1
2014	288.1	292.4	135.2	85.5	115.5	56.0	81.4	73.7	26.5	192.4	202.3	135.4	1684.4
mean	173.8	123.7	123.8	96.7	93.5	95.3	99.0	114.9	125.4	177.1	169.3	164.9	1557.4

Mean temperature in degrees Celsius for Valentia_Observatory

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
2017	7.8	8.1	9.4	9.3	12.5	14.1	14.8	14.7	13.3	12.4			11.6
2016	8.1	6.7	7.5	8.4	12.1	14.5	15.2	15.6	14.4	12.0	7.7	9.2	11.0
2015	7.3	6.3	7.5	10.0	10.5	13.0	14.3	13.8	13.5	11.9	10.8	10.0	10.8
2014	7.4	6.7	7.9	10.4	11.4	14.7	16.3	14.7	15.6	12.3	9.7	8.3	11.3
mean	7.3	7.2	8.1	9.3	11.5	13.6	15.3	15.3	13.9	11.5	9.3	7.8	10.8

Mean 10cm soil temperature for Valentia_Observatory at 0900 UTC

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
2017	7.2	7.6	8.6	10.4	13.4	15.4	16.4	15.8	14.2	n/a			12.1
2016	7.4	6.4	7.0	8.6	13.0	16.0	16.4	15.9	14.7	11.5	7.8	8.2	11.1
2015	6.8	5.8	7.5	10.1	11.9	14.4	15.6	15.2	13.4	11.5	10.5	9.6	11.1
2014	6.4	5.6	7.4	10.4	12.6	15.8	17.3	15.9	15.4	12.4	9.4	7.8	11.4
mean	6.1	6.0	7.2	9.0	12.2	15.0	16.4	15.9	13.9	10.9	8.4	6.7	10.6

Global Solar Radiation in Joules/cm² for Valentia_Observatory

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
2017	7687	12801	25889	43882	53681	47828	45494	40505	29306	11345			318418
2016	5943	14282	27051	44147	54378	51820	44204	38581	24533	18486	11649	5367	340441
2015	7367	13621	28050	50972	50067	51446	46310	43192	32930	18643	8112	4277	354987
2014	7923	12043	28919	40143	50283	63823	48915	47920	35435	17956	10070	5447	368877
mean	7381	13059	25500	41291	53914	53694	50133	43319	30729	17942	8986	5843	351794

Potential Evapotranspiration (mm) for Valentia_Observatory

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
2017	17.1	23.7	42.0	59.0	77.0	72.4	72.0	62.3	44.2	22.0			491.7
2016	21.1	25.5	40.1	60.0	78.9	80.5	69.5	65.5	41.7	35.8	19.1	19.8	557.5
2015	25.1	20.6	38.9	68.8	66.9	73.9	72.5	62.1	53.7	34.7	24.0	24.2	565.4
2014	20.3	25.2	37.2	56.1	68.4	96.0	80.8	76.3	58.7	35.3	21.5	22.6	598.4
mean	19.6	25.4	36.1	55.1	72.7	78.2	74.3	64.0	47.2	29.7	19.9	17.9	540.1

Evaporation (mm) for Valentia_Observatory

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
2017	22.5	32.9	60.7	85.1	111.9	108.0	102.5	90.2	63.8	31.0			708.6
2016	27.6	36.4	58.3	88.5	112.5	115.8	99.7	92.1	58.5	46.7	25.3	24.1	785.5
2015	33.2	29.9	58.4	99.4	104.1	109.6	106.7	90.4	73.6	45.3	31.9	30.8	813.3
2014	27.2	37.2	55.4	82.6	102.4	135.3	112.4	107.8	77.9	46.9	26.8	28.6	840.5
mean	26.1	36.0	53.7	82.4	107.9	114.2	106.5	91.0	66.7	41.0	26.1	22.9	774.5

Degree Days Below 15.5 Degree Celsius for Valentia_Observatory

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Total
2017	239	208	191	185	101	59	38	39	74	N/A	N/A	N/A	N/A
2016	228	257	249	214	114	46	31	24	50	111	234	196	1753
2015	255	257	249	172	155	79	47	61	67	112	141	170	1765
2014	251	246	235	153	130	48	18	42	38	101	174	224	1662
Mean	255	234	228	189	131	70	35	38	63	126	187	238	1795

Note: Evaporation and PE data are calculated using Penman/Monteith formulae.
All means are for the period 1981-2010. Data updated daily at Mid-day.

Weather Events for Public Works Contracts