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)
2026-05-13 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
2026-05-14 16:00	12.46	13.3	20.1	4.916	1.453	222.1	94.6	727.8	233.3	49.51	0.04	0	30.2
2026-05-14 17:00	11.8	12.71	22.42	5.39	1.931	232.1	60.73	514.7	229.7	36.63	0.04	0	30.21
2026-05-14 18:00	9.42	12.05	24.32	5.488	1.758	236.3	12.07	34.4	224.9	16.35	0.03	0	30.21
2026-05-14 19:00	6.486	9.48	35.61	3.773	1.06	249.8	1.814	13.11	221.9	8.81	0.03	1	30.21
2026-05-14 20:00	4.726	7.573	43.59	3.087	0.871	261.7	0.509	-3.364	220.2	5.333	0.02	1	30.22
2026-05-14 21:00	3.602	4.742	48.87	1.731	0.82	255.1	0.545	-4.523	217.8	3.205	0.02	2	30.23
2026-05-14 22:00	3.575	3.826	43.34	1.682	0.898	263.5	0.757	-3.772	216.8	1.727	0.02	2	30.24
2026-05-14 23:00	3.263	4.024	47.41	1.813	1.06	261.1	0.558	-3.872	217.2	0.499	0.03	2	30.23
2026-05-15 01:00	1.602	2.446	54.98	1.078	0.55	262.4	0.528	-3.921	213.6	-1.431	0.01	2	30.22
2026-05-15 02:00	1.447	2.067	51.39	1.192	0.564	268.9	0.743	-3.4	212.9	-2.17	0.02	2	30.21
2026-05-15 03:00	0.897	2.614	57.84	1.584	0.684	268.4	0.451	-3.545	212.4	-2.826	0.01	2	30.2
2026-05-15 04:00	0.448	1.672	52.12	1.209	0.531	263.5	0.688	-3.595	211.1	-3.484	0.01	2	30.2
2026-05-15 05:00	0.152	1.826	63.26	0.931	0.465	272.8	0.608	-2.88	213.3	-3.91	0.01	2	30.19
2026-05-15 06:00	0.179	2.067	59.06	1.062	0.458	268	8.66	53.25	215.9	-2.53	0.03	1	30.19
2026-05-15 07:00	2.053	7.741	31.42	2.94	0.877	183.9	41.16	264	219.7	7.215	0.03	0	30.2
2026-05-15 08:00	7.418	9.57	30.36	3.332	1.12	174.3	72.37	484.9	222.8	19.07	0.05	0	30.2
2026-05-15 09:00	9.5	10.26	26.55	3.92	1.289	28.16	104.8	716.7	233.8	33.24	0.04	0	30.2
2026-05-15 10:00	9.94	10.71	27.58	4.214	1.355	185.9	114.7	802	250.5	44.18	0.05	0	30.2
2026-05-15 11:00	10.25	11.78	27.12	4.802	1.527	235.4	120	856	275.6	51.97	0.05	0	30.2
2026-05-15 12:00	10.43	12.08	26.85	4.9	1.641	233.7	103.6	747.5	293.9	46.37	0.04	0	30.2
2026-05-15 13:00	10.84	11.77	26.85	4.851	1.627	225.2	89.2	651.2	298.1	45.51	0.05	0	30.2
2026-05-15 14:00	11.11	12.12	28.32	4.1	1.336	235.5	88.6	651.9	286.8	44.72	0.04	0	30.19
2026-05-15 15:00	11.09	12.24	28.83	3.887	1.1	81	54.7	410	299.2	34.67	0.05	0	30.18
2026-05-15 16:00	10.56	11.71	28.73	6.125	1.427	18.62	39.8	305.6	306.2	25.62	0.03	0	30.17
2026-05-15 17:00	9.76	12.17	33.12	2.27	0.751	92.6	28.19	227.6	270.2	23.06	0.04	0	30.17
2026-05-15 18:00	9.43	11.5	38.49	6.337	1.491	232	13.21	87.3	270.4	14.72	0.04	1	30.17
2026-05-15 19:00	5.797	9.42	52.91	4.459	0.886	255.3	4.786	35.38	272.5	10.69	0.03	1	30.17
2026-05-15 20:00	4.839	5.797	51.55	2.287	0.851	260.7	0.572	-2.398	246	5.444	0.02	1	30.17
2026-05-15 21:00	4.294	5.375	56.15	1.437	0.709	269.1	0.493	-3.275	245.1	3.646	0.02	1	30.18
2026-05-15 22:00	3.688	4.406	53.02	1.601	0.71	266.8	0.561	-3.666	227.5	1.5	0.03	2	30.18
2026-05-15 23:00	3.602	4.855	46.55	2.466	0.768	261.1	0.625	-3.338	226	0.212	0.04	2	30.18
2026-05-16 01:00	1.984	2.801	58.68	1.699	0.91	260.4	0.414	-3.65	222	-1.624	0.03	2	30.16
2026-05-16 02:00	1.8	2.459	58.39	1.143	0.596	270	0.558	-2.756	237.3	-1.404	0.03	2	30.15
2026-05-16 03:00	1.645	2.745	59.65	1.911	0.882	260.1	0.372	-2.636	239.4	-1.446	0.03	1	30.14
2026-05-16 04:00	1.728	2.913	56.56	3.152	0.941	231.2	0.367	-2.73	240.8	-1.878	0.03	1	30.14
2026-05-16 05:00	2.083	3.49	59.47	3.61	0.943	224	0.426	-2.354	240.9	-2.179	0.03	1	30.13
2026-05-16 06:00	2.291	3.728	61.27	1.274	0.426	248.3	7.53	47.27	250.5	-0.057	0.03	1	30.13
2026-05-16 07:00	3.701	8.59	36.06	2.858	0.691	104.3	42.96	265.3	228.1	8.2	0.04	0	30.14
2026-05-16 08:00	8.43	9.71	34.42	2.875	0.979	116	67.09	445.9	232.1	18.55	0.04	0	30.14
2026-05-16 09:00	9.53	11.09	31.61	4.949	1.397	95.9	106.1	712.5	238.6	32.65	0.05	0	30.14
2026-05-16 10:00	10.42	11.63	30.49	5.227	1.468	234.2	98.8	686.6	256.7	38.29	0.05	0	30.13
2026-05-16 11:00	10.46	12.11	30.22	7.775	1.855	241.7	108.1	755.4	256.7	43.1	0.05	0	30.13
2026-05-16 12:00	10.85	12.32	30.1	5.096	1.637	265.5	83.3	596.2	278.9	39.49	0.04	0	30.12
2026-05-16 13:00	11.09	13.19	26.03	5.88	1.746	276.8	120.1	846	264.1	46.26	0.05	0	30.11
2026-05-16 14:00	11.25	12.97	26.38	6.272	1.95	32.24	102.4	737	267.9	44.73	0.04	0	30.09
2026-05-16 15:00	11.18	12.68	22.99	5.733	1.606	307	86.9	639.6	272.2	39.16	0.04	0	30.08
2026-05-16 16:00	11.6	12.74	23.7	5.962	1.828	341.9	70.8	531.6	266.9	34.74	0.05	0	30.06
2026-05-16 17:00	11.04	12.74	26.4	6.811	2.007	285.1	44.99	352.4	277.8	26.66	0.05	0	30.04
2026-05-16 18:00	9.99	11.04	25.44	5.472	1.452	266.1	12.2	86.6	281.2	15.47	0.05	0	30.03
2026-05-16 19:00	7.698	10.22	43.61	3.904	1.205	254.4	3.595	24.56	303.8	11.8	0.04	1	30.02
2026-05-16 20:00	7.234	9.46	30.65	6.272	1.762	242.8	0.579	-0.655	278.2	8.25	0.04	1	30.02
2026-05-16 21:00	8.04	8.91	28.92	5.815	1.854	246.6	0.302	-4.057	230.7	4.315	0.04	1	30.03
2026-05-16 22:00	7.303	8.26	29.58	5.308	1.473	242.5	0.184	-3.302	258.9	3.971	0.03	1	30.03