December 1999 Weather

Malheur Experiment Station, Ontario, OR

Monthly weather summaries for 1997 at Ontario, OR
Monthly weather summaries for 1998 at Ontario, OR
Monthly weather summaries for 1999 at Ontario, OR
Day by day weather for other months

Note: all data is recorded at 8 AM on the date for the row in which they appear. All data pertains to the preceeding 24 hr. period except 8 AM air temperature.

Date	Air Temperature			Soil temperature 4" depth		Precipitation	Snowfall	Snow depth	Wind run	Sky
Date	Max	Min	8 AM	Max	Min	Precipitation	Snowfall	Snow depth	Wind run	Sky
	--------------------- ^oF -----------------------					------------ inches ------------			miles
31	24	21	23	31	31	t			37	fog
30	22	20	21	31	30	t			25	fog
29	23	20	21	32	31	t			19	overcast
28	25	21	22	31	28	t			17	fog
27	23	22	22	33	32				13	fog
26	25	22	22	34	32				20	fog
25	28	20	22	34	33				39	fog
24	40	21	21	34	34				29	clear
23	42	22	22	36	35				38	clear
22	48	25	27	36	36				61	clear
21	43	26	28	36	36				44	clear
20	45	30	30	36	36				53	clear
19	50	33	34	37	36				96	scattered
18	38	31	36	36	35	0.05			46	scattered
17	36	33	33	35	35	0.02			43	overcast
16	34	31	33	35	34	0.22	0.5	1	81	overcast
15	38	30	31	35	34	0.09	0.5	0.5	128	overcast
14	41	27	32	36	35				84	overcast
13	38	29	33	35	35	0.09			69	clear
12	34	30	31	35	35	0.01			33	overcast
11	35	23	28	35	35	0.04	0.5	0.5	35	overcast
10	36	15	23	36	34				156	scattered
9	35	22	33	40	26	0.01	0.25	0.75	113	overcast
8	33	18	26	36	34	0.12	1	1	40	overcast
7	34	25	28	35	34	0.03	t	t	32	fog
6	34	24	27	36	35	t	t	t	37	overcast
5	36	20	27	38	36				41	overcast
4	42	18	19	39	36				42	clear
3	42	27	27	44	36	0.02			146	clear
2	52	32	32	43	42	0.03	0.25	0.25	78	broken
1	56	35	35	43	42				59	clear