Swamp Angel Study Plot Full Hourly Data – Center for Snow and Avalanche Studies

Datetime	Minimum Air Temperature (C°), Lower	Maximum Air Temperature (C°), Lower	Relative Humidity (%), Lower	Peak Wind Gust (ms), Upper	Wind Speed (ms)	Wind Direction (°), Upper	Solar Radiation-Down Looking, Broadband (W/m²)	Solar Radiation-Up Looking, Broadband (W/m²)	Longwave Radiation-Up Looking (W/m²)	Snow Surface Temperature (C°)	Snow Depth (m)	SWE (mm)	Hourly Precipitation (mm)	Barometer (inHg)
2026-04-02 12:00	0.673	1.714	65.5	4.377	1.259	161.4	757.7	501.3	301.4	-1.978	0.8	218	4	29.97
2026-04-02 13:00	1.039	2.278	60.91	5.112	1.466	119.1	758	1089	199.2	-1.907	0.79	217	3	29.97
2026-04-02 14:00	1.477	2.614	54.89	4.786	1.5	204.6	692.6	940	198.1	-1.984	0.77	217	9	29.96
2026-04-02 15:00	1.688	2.983	65.25	5.423	1.606	230.3	567.6	795.4	201.8	-2.257	0.76	217	4	29.96
2026-04-02 16:00	1.602	2.307	64.74	6.305	1.661	235.9	404.9	618.2	203.4	-2.56	0.75	217	0	29.95
2026-04-02 17:00	0.561	1.84	73.79	4.377	1.451	242.8	191.3	289.1	230.8	-2.61	0.75	217	0	29.96
2026-04-02 18:00	-0.114	0.716	75.61	3.103	1.184	243.1	73.8	99.8	225.7	-3.278	0.75	217	0	29.97
2026-04-02 19:00	-0.523	-0.071	75.78	3.577	1.38	237.8	7.433	7.655	256.2	-2.962	0.74	217	0	29.98
2026-04-02 20:00	-0.776	0.011	77.43	3.561	1.409	245.4	0.147	-0.98	283.8	-2.247	0.74	217	0	29.98
2026-04-02 21:00	-0.239	0.448	70.81	4.328	1.259	237.2	0.103	-0.768	287.8	-2.368	0.73	217	0	29.98
2026-04-02 22:00	-0.213	0.422	60.8	6.19	2.239	240.8	-0.057	-1.215	275.6	-3.559	0.72	217	0	29.99
2026-04-02 23:00	-0.368	0.083	66.07	4.949	1.953	238.3	-0.106	-1.094	280.9	-3.74	0.72	217	0	29.99
2026-04-03 01:00	-3.139	-0.608	74.15	5.831	1.887	250.8	-0.199	-0.957	292.3	-3.608	0.73	218	0	29.98
2026-04-03 02:00	-7.724	-2.408	94.2	3.969	1.489	170.5	-0.619	-1.659	269.8	-5.965	0.73	218	0	29.99
2026-04-03 03:00	-9.64	-7.655	92.6	3.757	1.778	96.3	-0.159	-0.536	273	-7.615	0.73	218	0	30
2026-04-03 04:00	-10.64	-9.58	92.2	3.871	1.606	84.7	-0.067	-0.356	268.7	-9.67	0.74	218	0	30
2026-04-03 05:00	-10.72	-9.33	92.3	3.789	1.342	95.5	0.136	-0.102	266.7	-10.15	0.75	219	0	30.01
2026-04-03 06:00	-10.8	-8.1	91.6	5.521	1.023	123.4	1.043	0.386	250.1	-12.1	0.75	219	0	30.01
2026-04-03 07:00	-9.78	-7.289	85.7	4.818	1.759	195.4	47.13	31.31	202.8	-13.75	0.75	219	0	30.01
2026-04-03 08:00	-10.37	-9.34	93.9	5.39	1.813	99.2	193.5	183.4	221.4	-12.31	0.75	219	0	30.02
2026-04-03 09:00	-11.06	-9.99	87	5.749	2.392	90.5	417.3	500.9	250.2	-8.63	0.74	219	0	30.03
2026-04-03 10:00	-11.44	-10.68	76.29	5.259	2.349	90.3	426.6	523.3	254	-9.19	0.74	219	0	30.05
2026-04-03 11:00	-11.16	-8.95	68.71	5.815	2.337	84.8	757.9	943	222.2	-5.846	0.73	219	0	30.07
2026-04-03 12:00	-9.09	-7.639	60.6	5.423	1.846	89.8	707.7	896	181.1	-5.997	0.72	219	0	30.09
2026-04-03 13:00	-8.37	-6.643	46.29	6.55	2.164	88.5	763	995	176	-5.073	0.72	219	0	30.1
2026-04-03 14:00	-7.161	-5.671	39.97	6.092	2.01	97.9	703.4	948	156.9	-5.294	0.71	219	0	30.11
2026-04-03 15:00	-5.812	-4.138	38.21	6.566	1.719	90.1	591.5	827	159.7	-5.579	0.7	219	0	30.12
2026-04-03 16:00	-5.206	-4.053	40.44	5.831	1.436	192.1	420.8	644.2	163.8	-7.32	0.7	219	0	30.14
2026-04-03 17:00	-5.489	-4.504	46.05	5.537	1.227	71.73	218.4	429.1	165.9	-8.39	0.71	220	0	30.15
2026-04-03 18:00	-6.91	-5.431	50.71	3.936	1.002	83.6	40.4	66.08	163.2	-11.54	0.71	220	0	30.17
2026-04-03 19:00	-8.58	-6.824	65.23	2.989	0.825	292.6	5.799	3.004	160.9	-14.19	0.7	219	0	30.18
2026-04-03 20:00	-10.03	-8.13	72.39	2.989	0.848	287.8	0.015	-3.689	160.1	-16.28	0.7	220	0	30.2
2026-04-03 21:00	-11.12	-9.85	77.94	1.454	0.593	284	0.014	-3.522	158.9	-19.04	0.7	220	0	30.22
2026-04-03 22:00	-11.89	-10.82	81.3	1.16	0.438	269.1	0.024	-3.271	157.7	-21.09	0.7	220	0	30.23
2026-04-03 23:00	-12.37	-11.7	83.7	0.833	0.298	258.7	-0.032	-3.027	157.1	-22.63	0.71	220	0	30.23
2026-04-04 01:00	-12.23	-10.24	74.73	1.976	0.754	280.2	0.042	-3.1	154.6	-23.47	0.69	221	0	30.25
2026-04-04 02:00	-11.97	-10.69	78.47	1.666	0.824	283	-0.26	-3.396	154.9	-23.72	0.7	221	0	30.25
2026-04-04 03:00	-12.65	-11.55	77.33	1.568	0.572	269.7	-0.322	-3.472	154.3	-24.81	0.7	222	0	30.25
2026-04-04 04:00	-12.97	-12.59	79.46	1.258	0.593	261.5	-0.195	-3.183	153.5	-25.59	0.7	222	0	30.25
2026-04-04 05:00	-12.69	-11.59	76.33	1.437	0.647	273.1	0.005	-2.883	154.5	-25.51	0.7	222	0	30.25
2026-04-04 06:00	-12.37	-11.65	75.07	1.094	0.62	257.6	1.066	-1.801	152.9	-26.27	0.7	222	0	30.25
2026-04-04 07:00	-11.97	-8.88	68.29	0.964	0.316	248.2	77.92	123.8	151.6	-25.82	0.69	222	0	30.26
2026-04-04 08:00	-8.87	-3.35	44.81	1.47	0.377	83.4	299.7	478.3	154.5	-20.7	0.69	221	1	30.27
2026-04-04 09:00	-4.87	-0.733	25.86	2.548	0.744	89.6	466.7	619.6	158	-13.98	0.69	221	0	30.28
2026-04-04 10:00	-1.27	0.04	24.99	3.316	1.278	91.4	598.1	766.3	162.9	-8.11	0.69	220	0	30.29
2026-04-04 11:00	-0.296	1.533	24.63	3.642	1.318	83.3	687.1	903	168.8	-3.775	0.69	220	0	30.3
2026-04-04 12:00	0.673	2.927	18.14	3.054	1.261	214	728.1	983	170.9	-3.216	0.69	220	1	30.3
2026-04-04 13:00	1.714	3.138	21.06	3.43	1.097	69.43	718.8	994	176.9	-3.005	0.68	220	12	30.29
2026-04-04 14:00	2.63	3.8	19.13	3.169	1.051	89.9	657.8	936	180	-3.161	0.67	220	0	30.29
2026-04-04 15:00	3.178	4.855	26.74	4.018	1.075	117.9	556.1	818	182.5	-3.56	0.67	220	0	30.28
2026-04-04 16:00	2.67	3.503	32.69	4.851	1.527	87.3	402.9	643.3	187.6	-4.18	0.67	220	0	30.28
2026-04-04 17:00	2.574	3.108	28.67	3.201	0.897	55.91	213.2	429.3	185.7	-5.017	0.67	220	0	30.28
2026-04-04 18:00	-0.707	3.039	31.47	2.156	0.786	300.4	38.46	66.83	182.4	-7.514	0.68	221	0	30.28
2026-04-04 19:00	-3.097	-0.691	38.89	1.862	0.943	275.2	5.664	2.495	180.1	-9.13	0.67	221	0	30.29
2026-04-04 20:00	-4.477	-2.424	57.72	1.323	0.482	291.2	0.023	-4.343	178.4	-11.16	0.67	221	1	30.3
2026-04-04 21:00	-5.938	-4.448	61.05	1.274	0.517	277.1	0.066	-3.716	177.1	-13.49	0.67	222	0	30.31
2026-04-04 22:00	-6.192	-5.348	62.35	1.127	0.57	276.1	0.089	-3.349	176.5	-15.36	0.67	222	1	30.32
2026-04-04 23:00	-6.712	-5.855	68.5	1.176	0.614	265.4	-0.018	-3.106	176.3	-16.86	0.67	223	0	30.31
2026-04-05 01:00	-6.686	-6.079	65.27	1.682	1.038	256.1	-0.186	-3.153	178.5	-17.98	0.66	223	0	30.31
2026-04-05 02:00	-7.401	-6.178	68.48	1.503	0.856	235.4	-0.341	-3.568	174.2	-19.17	0.67	223	0	30.31
2026-04-05 03:00	-7.441	-6.686	65.5	1.486	0.892	247.6	-0.08	-3.355	170.5	-19.79	0.67	224	0	30.31
2026-04-05 04:00	-7.26	-6.768	64.55	2.744	0.969	238.1	-0.25	-3.553	164.1	-20.52	0.67	224	0	30.31
2026-04-05 05:00	-8.05	-7.233	62.27	2.025	0.816	243.6	-0.408	-3.86	160.2	-21.75	0.67	224	0	30.31
2026-04-05 06:00	-8.16	-6.106	56.41	2.597	1.112	246.8	1.132	-1.821	159.7	-21.69	0.67	224	0	30.31
2026-04-05 07:00	-7.724	-3.842	48.05	2.875	0.837	215.5	81.2	87.7	162.2	-21.17	0.66	223	0	30.31
2026-04-05 08:00	-4.109	0.291	34.69	2.875	0.783	138.6	294.7	347.9	166.9	-15.65	0.66	222	0	30.33
2026-04-05 09:00	0.165	2.433	29.18	3.789	1.031	132.5	453.8	572	171	-9.55	0.66	221	1	30.33
2026-04-05 10:00	2.011	3.194	26.49	3.463	1.264	115.6	579	760.6	176.6	-4.738	0.66	220	0	30.33
2026-04-05 11:00	2.828	4.219	24.63	4.149	1.379	123	662.3	897	184.6	-2.864	0.65	220	0	30.34
2026-04-05 12:00	3.939	5.698	23.28	3.61	1.176	92.8	698.7	972	190.6	-2.781	0.65	220	0	30.33
2026-04-05 13:00	4.881	6.136	25.55	3.985	1.166	128.9	690.3	981	195.7	-2.786	0.64	220	0	30.32
2026-04-05 14:00	5.389	6.967	18.97	3.414	1.34	29.1	634.5	927	198.7	-2.905	0.64	220	0	30.32
2026-04-05 15:00	6.542	7.346	21.65	4.149	1.303	207	536.4	809	200.6	-3.113	0.63	220	0	30.31
2026-04-05 16:00	6.318	8.35	23.54	4.034	1.117	222.7	387.8	637.8	204	-3.487	0.62	220	0	30.3
2026-04-05 17:00	5.629	7.191	25.35	4.165	1.556	219.5	212.5	430.7	204.7	-3.713	0.61	220	0	30.3
2026-04-05 18:00	1.124	5.768	52.82	3.071	0.898	250.8	40.23	71.69	202.4	-4.962	0.61	219	0	30.3
2026-04-05 19:00	-1.057	1.153	53.95	1.356	0.649	259.1	5.127	1.824	200.3	-6.395	0.62	220	0	30.3
2026-04-05 20:00	-2.17	-0.931	60.79	1.16	0.623	264	0.121	-3.983	197.9	-8.3	0.62	220	0	30.3
2026-04-05 21:00	-2.536	-1.999	62.06	1.274	0.755	259.8	0.198	-3.454	195.9	-10.34	0.62	221	0	30.31
2026-04-05 22:00	-2.985	-2.48	60.37	1.323	0.75	260.4	0.081	-3.528	191.9	-12.16	0.62	221	0	30.31