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)	Barometer (inHg)
2026-05-11 05:00	-0.143	0.716	45.27	2.287	1.086	264	0.358	-3.327	190.8	-5.911	0.11	99	30.36
2026-05-11 06:00	-0.466	0.884	50.21	1.895	0.642	271.3	21.55	48.41	190.6	-5.469	0.1	94	30.36
2026-05-11 07:00	0.87	7.474	24.46	3.593	0.757	206.9	124.5	270	195.3	-1.086	0.1	78	30.37
2026-05-11 08:00	7.303	8.98	18.02	4.884	1.456	161.1	205.7	493.7	200.1	3.579	0.1	67	30.38
2026-05-11 09:00	8.44	9.91	14.67	4.41	1.519	236.8	273.6	700.6	203.5	12.39	0.09	79	30.39
2026-05-11 10:00	9.74	10.68	13.57	4.982	1.809	232.6	320.7	872	208.4	21.22	0.09	95	30.4
2026-05-11 11:00	10.67	11.91	15.26	4.59	1.802	235.7	344.1	995	215.7	29.57	0.07	94	30.4
2026-05-11 12:00	11.45	12.45	14.14	4.279	1.612	231.9	349.2	1060	220.5	35.94	0.07	92	30.4
2026-05-11 13:00	12.12	13.34	14.85	3.675	1.183	228.2	333.6	1065	222.8	39.85	0.06	89	30.4
2026-05-11 14:00	12.98	13.73	16.76	4.671	1.72	220.8	297.4	1007	227.6	39.88	0.05	85	30.39
2026-05-11 15:00	13.38	14.01	15.29	4.916	1.706	224.1	245.4	894	228.7	37.59	0.03	80	30.38
2026-05-11 16:00	13.28	13.83	13.71	5.243	1.764	220.5	183.9	731.1	225.7	32.5	0.04	75	30.38
2026-05-11 17:00	13	13.77	14.17	5.112	1.719	220.9	113.3	529.7	220.7	25.55	0.04	71	30.38
2026-05-11 18:00	8.08	13.07	32.49	5.57	1.169	241.8	26.11	47.64	218.5	11.77	0.04	67	30.38
2026-05-11 19:00	6.572	8.42	35.17	3.201	0.863	270.8	4.708	12.27	219.4	5.8	0.05	67	30.38
2026-05-11 20:00	4.35	6.783	46.04	1.911	0.914	264.9	0.317	-3.535	216	2.7	0.04	66	30.38
2026-05-11 21:00	3.29	4.363	50.3	1.307	0.769	259.2	0.227	-4.412	214.2	0.879	0.05	65	30.39
2026-05-11 22:00	3.29	4.15	44.27	2.091	0.881	272.7	0.59	-3.527	213	-0.505	0.04	65	30.4
2026-05-11 23:00	3.332	4.037	41.59	1.878	1.054	267.5	0.162	-3.734	211.8	-1.74	0.04	65	30.41
2026-05-12 01:00	1.984	3.546	42.67	1.731	0.783	272.1	0.13	-3.793	209.2	-3.081	0.04	66	30.4
2026-05-12 02:00	1.252	3.121	46.78	2.238	0.7	278.6	0.188	-3.717	209	-3.476	0.05	68	30.39
2026-05-12 03:00	1.517	2.363	47.59	1.878	0.835	269.3	0.22	-3.492	210.6	-3.817	0.05	68	30.39
2026-05-12 04:00	1.236	1.984	50.03	1.601	0.812	265.9	0.176	-3.453	211.9	-4.087	0.05	70	30.39
2026-05-12 05:00	1.322	1.928	51.52	1.731	1.005	264.3	0.379	-2.82	213.1	-4.287	0.05	68	30.39
2026-05-12 06:00	1.335	3.477	48.47	1.911	0.816	260.5	17.43	49.89	213.7	-3.769	0.04	60	30.4
2026-05-12 07:00	3.477	9.15	26.42	3.201	0.952	192	96.7	264.8	220.7	1.55	0.05	42	30.41
2026-05-12 08:00	9.14	11.22	21.98	3.43	1.252	128.2	162.3	482.7	225.3	10.71	0.05	48	30.42
2026-05-12 09:00	11.22	13.63	20.75	3.985	1.048	131.1	213.4	685.6	231.3	22.46	0.03	63	30.43
2026-05-12 10:00	13.11	13.98	20.11	3.642	1.286	235.6	246.9	865	237.1	34.11	0.04	61	30.43
2026-05-12 11:00	13.73	14.5	17.89	3.855	1.472	243.7	265.6	1008	243.4	44.67	0.05	62	30.44
2026-05-12 12:00	13.9	14.91	19.73	5.913	1.978	218.7	264.7	1086	246.1	50.75	0.05	58	30.44
2026-05-12 13:00	14.45	15.76	17.42	4.247	1.365	227.4	253.8	1147	258.1	57.28	0.04	41	30.43
2026-05-12 14:00	14.72	15.64	16.97	4.132	1.43	301	162.2	807	272.7	47.33	0.03	39	30.42
2026-05-12 15:00	15.18	16.21	19.86	4.361	1.162	232.9	134.2	730	270.7	45.15	0.04	36	30.4
2026-05-12 16:00	13.84	16.32	23.44	3.479	0.794	298.3	38.85	222.1	282.9	27	0.03	34	30.4
2026-05-12 17:00	8.87	14.25	35.61	3.365	1.004	267.2	21.79	134.1	260.7	17.25	0.03	33	30.39
2026-05-12 18:00	9.11	10.1	38.15	2.319	1.116	252.4	18.06	97.3	285.7	14.67	0.02	32	30.39
2026-05-12 19:00	6.67	10.87	47.48	2.679	0.82	265.4	4.663	24.46	249.6	8.94	0.02	31	30.39
2026-05-12 20:00	5.375	6.98	48.81	1.797	1.009	266.3	0.389	-2.293	239.9	5.054	0.01	30	30.4
2026-05-12 21:00	5.517	5.925	48.09	1.584	0.916	268.6	0.358	-3.323	237.7	3.221	0.02	29	30.41
2026-05-12 22:00	4.782	5.856	52.97	1.96	1.099	260.7	0.185	-3.405	234.5	1.726	0.02	28	30.41
2026-05-12 23:00	4.433	4.881	51.59	1.682	1.063	263.6	0.249	-3.522	231.8	0.659	0.04	27	30.41
2026-05-13 01:00	3.632	4.248	53.96	1.584	0.91	264.9	0.294	-3.427	226.2	-1.363	0.04	34	30.39
2026-05-13 02:00	3.602	4.008	53.48	1.813	0.99	266.1	0.255	-3.376	224.2	-2.039	0.04	35	30.38
2026-05-13 03:00	3.348	3.714	51.15	1.584	0.968	265.5	0.237	-3.384	223.8	-2.609	0.04	41	30.38
2026-05-13 04:00	3.207	4.644	46.49	2.401	1.152	267.4	0.309	-3.096	223	-3.003	0.03	42	30.38
2026-05-13 05:00	3.477	4.024	48.35	2.27	1.364	266.2	0.15	-2.965	222.8	-3.343	0.03	44	30.37
2026-05-13 06:00	3.081	5.487	47.22	1.895	1.032	251.7	11.47	50.76	222.6	-2.657	0.04	36	30.38
2026-05-13 07:00	5.461	10.22	31.58	2.973	0.947	168.2	61.88	262.7	225.8	5.346	0.03	38	30.38
2026-05-13 08:00	10.2	12.45	30.24	3.675	1.089	140.8	104.8	481.3	230	16.24	0.04	39	30.39
2026-05-13 09:00	11.84	13.94	20.62	4.361	1.312	89.2	138.2	680.4	236.3	27.77	0.04	38	30.39
2026-05-13 10:00	13.73	15.07	18.3	4.557	1.374	98.1	160.5	857	243.2	39.94	0.03	29	30.38
2026-05-13 11:00	14.39	15.55	19.23	7.023	1.963	34.4	163.3	946	259.6	46.48	0.05	18	30.37
2026-05-13 12:00	14.36	15.56	19.47	5.733	2.033	1.165	140.4	875	277.2	45.57	0.05	11	30.37
2026-05-13 13:00	15.14	15.98	21.15	5.864	1.773	17.58	143.7	947	274.1	48.78	0.04	9	30.35
2026-05-13 14:00	14.55	15.87	21.54	7.53	1.819	286.2	101	709	286.8	43.75	0.04	7	30.33
2026-05-13 15:00	13.08	14.55	25.7	6.68	2.344	246.3	74.55	543.4	294.9	34.75	0.04	3	30.32
2026-05-13 16:00	10.56	13.72	33.54	6.076	1.343	33.93	34.39	264.8	308.1	26.17	0.05	0	30.31
2026-05-13 17:00	8.88	11.54	45.72	7.497	1.767	317.4	8.95	71.08	324.6	15.62	0.04	0	30.31
2026-05-13 18:00	8.43	9.45	40.5	2.826	0.811	227.6	13.29	100.6	299.9	15.06	0.04	0	30.3
2026-05-13 19:00	7.009	9.65	43.5	7.432	1.309	244.4	6.534	47.51	281.9	10.68	0.04	0	30.29
2026-05-13 20:00	6.473	9.47	63.67	5.145	1.441	241.5	0.077	-1.982	317	8.12	0.03	1	30.31
2026-05-13 21:00	5.824	6.499	67.47	3.071	0.878	232.7	0.117	-1.953	314.3	7.546	0.04	1	30.32
2026-05-13 22:00	3.546	5.896	77.94	2.14	0.685	262.9	-0.011	-2.72	279.2	5.39	0.03	1	30.31
2026-05-13 23:00	3.431	4.419	76.48	1.715	0.61	233.7	0.483	-1.382	294.7	5.25	0.03	1	30.31
2026-05-14 01:00	2.857	5.445	87	5.063	1.131	227.4	0.651	-2.369	306.7	4.176	0.04	1	30.28
2026-05-14 02:00	2.644	3.151	84.5	2.205	0.876	226.7	0.534	-1.793	275.4	2.783	0.03	1	30.26
2026-05-14 03:00	2.489	3.009	81.5	1.568	0.782	252.3	0.571	-1.665	275.2	1.992	0.03	1	30.24
2026-05-14 04:00	2.801	3.658	76.59	2.221	0.861	242.7	0.586	-1.444	275.9	1.697	0.03	1	30.24
2026-05-14 05:00	1.856	3.559	79.43	2.581	0.921	246.3	0.307	-3.123	235	-0.652	0.03	2	30.23
2026-05-14 06:00	1.701	3.546	72.6	1.829	0.718	257.5	6.897	52.04	221.8	-0.739	0.02	1	30.24
2026-05-14 07:00	3.519	7.079	43.7	3.708	0.909	93.9	39.77	269	217.5	6.494	0.03	0	30.24
2026-05-14 08:00	7.066	8.56	26.54	4.475	1.245	172.8	74.39	494.9	211.2	16.06	0.04	0	30.24
2026-05-14 09:00	8.23	9.63	22.85	6.125	1.354	192.2	103.8	700.1	213.9	28.98	0.04	0	30.24
2026-05-14 10:00	9.27	10.05	25.41	3.789	1.493	236.9	125	865	220.6	42.61	0.05	0	30.24
2026-05-14 11:00	9.33	10.92	22.05	6.664	1.733	231.5	141	988	223.6	53.89	0.05	0	30.24
2026-05-14 12:00	10.2	11.07	22.19	4.214	1.54	205.2	149.7	1054	225.4	61.76	0.04	0	30.24
2026-05-14 13:00	10.91	11.82	23.62	5.374	1.557	235.3	149.5	1060	227.8	62.44	0.05	0	30.23
2026-05-14 14:00	11.42	12.91	20.91	4.492	1.629	231.9	138.6	1001	231.1	63.09	0.04	0	30.22
2026-05-14 15:00	12.19	13.41	22.81	4.132	1.616	218.1	120.5	892	234	58.05	0.04	0	30.22