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)
2025-10-04 02:00	3.8	4.531	94.2	5.978	1.559	243	0.767	-0.516	330.8	5.025	0.02	1	2	30.19
2025-10-04 03:00	4.475	5.263	91.9	6.256	1.648	252.9	0.915	-0.442	328.8	5.071	0.01	1	0	30.17
2025-10-04 04:00	4.406	4.881	90.4	4.655	1.746	251.5	0.939	-0.897	324.6	4.778	0.03	1	0	30.15
2025-10-04 05:00	2.983	4.502	93.4	5.994	1.798	247.6	0.893	-1.208	327.4	4.278	0.03	1	2	30.14
2025-10-04 06:00	2.334	3.009	93.2	4.492	1.585	250.1	0.74	-0.717	322.5	2.542	0.03	2	2	30.12
2025-10-04 07:00	2.053	3.039	94.1	4.965	1.635	251.1	1.234	3.737	323.1	2.339	0.03	1	2	30.1
2025-10-04 08:00	2.587	3.362	87.4	6.648	1.986	238.8	5.069	35.85	317.8	3.062	0.01	2	1	30.1
2025-10-04 09:00	2.801	3.461	82.3	7.448	2.042	249.7	12.28	95.9	313.5	4.14	0.03	1	0	30.09
2025-10-04 10:00	1.672	4.475	76.74	7.611	2.382	244.5	54.44	341.6	308.3	3.542	0.03	0	3	30.08
2025-10-04 11:00	3.234	4.206	77.17	7.905	2.327	248.6	19.19	147.4	312.8	5.187	0.01	1	0	30.06
2025-10-04 12:00	3.052	4.248	70.34	5.798	2.066	253.5	27.46	218	310.3	6.395	-0.01	1	0	30.05
2025-10-04 13:00	3.405	4.657	68.09	5.749	1.669	259.4	23.34	182.2	306.5	6.508	-0.01	1	0	30.04
2025-10-04 14:00	4.037	5.557	54.02	6.876	1.452	236	31.22	241.3	291.3	7.9	-0.01	0	0	30.03
2025-10-04 15:00	5.276	6.024	43.49	5.864	2.232	248.3	47.14	356.7	267	9.62	-0	0	0	30.03
2025-10-04 16:00	4.742	5.431	39.28	7.775	2.51	252.3	22.81	166.7	248.3	5.158	0.02	1	0	30.03
2025-10-04 17:00	4.446	4.839	37.15	8.12	2.371	251.1	9.48	72.03	229.4	2.077	0.02	1	1	30.04
2025-10-04 18:00	3.728	4.644	34.58	6.729	2.097	249.6	2.415	13.88	210.2	-0.692	0.02	1	0	30.05
2025-10-04 19:00	1.308	3.856	47.25	6.713	1.532	246.4	0.228	-4.572	198.7	-2.441	0.01	1	0	30.06
2025-10-04 20:00	-0.958	1.533	62.41	1.797	0.846	269.9	0.226	-4.869	197.7	-2.954	0.02	2	0	30.08
2025-10-04 21:00	-1.169	-0.114	56.64	2.27	1.134	252.6	0.8	-3.659	194.7	-3.217	0.01	2	0	30.08
2025-10-04 22:00	-1.844	-0.312	66.6	1.715	0.902	256.1	0.567	-4.174	194.7	-3.86	0.03	2	0	30.09
2025-10-04 23:00	-2.282	-1.689	67.57	1.552	0.629	268.9	0.799	-3.705	194	-4.32	0.05	2	0	30.09
2025-10-05 01:00	-0.974	0.04	55.03	2.728	1.009	236.3	0.86	-3.451	196.5	-5.182	0.04	2	0	30.09
2025-10-05 02:00	-1.07	-0.157	51.44	2.564	0.878	238.1	0.539	-3.869	196.9	-5.492	0.03	1	0	30.08
2025-10-05 03:00	-1.495	-0.101	60.71	3.005	0.892	227.8	0.519	-3.803	198.3	-5.728	0.03	2	0	30.08
2025-10-05 04:00	-1.369	0.379	55.22	2.662	0.838	215.4	0.749	-3.704	197.7	-5.867	0.03	1	0	30.08
2025-10-05 05:00	-1.943	-0.424	63.5	1.911	0.58	241.9	0.42	-4.102	197.4	-6.319	0.03	1	0	30.08
2025-10-05 06:00	-2.256	-1.577	65.4	1.584	0.823	249.9	0.617	-3.461	198.4	-6.305	0.02	1	0	30.09
2025-10-05 07:00	-2.325	-1.676	65.18	1.927	0.915	262	1.864	8.6	197.7	-5.959	0.01	1	0	30.09
2025-10-05 08:00	-1.956	2.758	43.24	3.43	0.872	275.9	30.45	149.8	199.1	-3.341	0.02	0	0	30.1
2025-10-05 09:00	2.686	4.235	41.43	4.688	1.374	41.78	77.47	445.3	203.7	3.103	0.03	0	0	30.11
2025-10-05 10:00	4.037	5.698	36.66	5.063	1.581	58.79	98.8	617.6	207.8	9.77	0.02	0	0	30.12
2025-10-05 11:00	5.501	6.799	32.34	6.109	1.602	149.4	115.3	737.3	213.3	17.55	0.02	0	0	30.12
2025-10-05 12:00	6.08	7.162	38.37	7.203	1.44	88.7	127.2	800	218.2	22.58	0.02	0	0	30.12
2025-10-05 13:00	6.881	8.23	34.91	3.61	1.301	86.5	126.3	801	223.3	25.41	0.02	0	0	30.11
2025-10-05 14:00	7.768	9.05	38.38	3.495	1.168	83.8	108.4	705.3	226.6	24.16	0.02	0	0	30.11
2025-10-05 15:00	7.936	8.64	38.06	4.786	1.285	89.1	79.01	584	228.7	18.55	0.03	0	0	30.11
2025-10-05 16:00	6.897	8.23	41.31	3.577	1.022	207.1	30.2	219.2	246.3	11.97	0.03	0	0	30.11
2025-10-05 17:00	5.517	7.853	47.48	2.891	0.677	233.2	10.42	78.42	244.6	7.268	0.03	1	0	30.11
2025-10-05 18:00	3.164	5.656	56.7	3.054	0.857	239.1	1.559	9.65	229.3	2.731	0.03	1	0	30.12
2025-10-05 19:00	2.208	3.263	56.41	2.221	0.825	257.4	0.472	-4.285	215.9	-0.03	0.02	1	0	30.14
2025-10-05 20:00	0.534	2.195	62.7	1.699	0.794	273	0.392	-4.12	211.2	-1.448	0.02	2	0	30.15
2025-10-05 21:00	-0.226	0.59	62.48	1.094	0.617	279.1	0.621	-3.754	207.7	-2.218	0.01	2	0	30.16
2025-10-05 22:00	-0.239	0.772	60.26	2.515	0.781	255.2	0.786	-3.143	206.9	-2.826	0.03	2	0	30.16
2025-10-05 23:00	-0.509	0.673	56.46	2.27	1.001	240.1	0.742	-3.42	207.2	-3.375	0.03	2	0	30.16
2025-10-06 01:00	-0.183	0.841	58.12	2.499	0.776	235.5	0.553	-3.75	208.5	-4.345	0.01	2	0	30.16
2025-10-06 02:00	-0.424	0.422	57.53	2.385	0.687	243	0.501	-3.718	206.5	-4.827	0.02	2	0	30.16
2025-10-06 03:00	-0.437	0.392	58.58	2.352	0.844	227	0.581	-3.609	205.9	-5.186	0.02	2	0	30.16
2025-10-06 04:00	-0.199	1.292	57.29	3.169	0.916	221.7	0.575	-3.501	205	-5.331	0.02	1	0	30.16
2025-10-06 05:00	-0.931	-0.002	58.64	1.617	0.68	251.9	0.298	-3.914	205.1	-5.843	0.02	2	0	30.16
2025-10-06 06:00	-1.142	-0.482	62.57	2.238	0.92	265.1	0.487	-3.226	205.3	-5.871	0.03	2	0	30.16
2025-10-06 07:00	-1.382	-0.819	63.41	1.927	0.914	264.2	1.721	8.58	205.1	-5.653	0.04	1	0	30.17
2025-10-06 08:00	-0.918	4.39	43.8	2.564	0.685	230.7	29.59	144.7	209.4	-2.913	0.04	0	0	30.18
2025-10-06 09:00	4.307	6.08	38.05	3.495	1.129	79.74	78.76	436.4	214.1	5.13	0.02	0	0	30.19
2025-10-06 10:00	5.768	7.346	37.42	4.573	1.563	43.07	102.7	607	217.3	13.78	0.02	0	0	30.2
2025-10-06 11:00	6.98	8.22	35.13	5.063	1.525	136.2	120.6	730.7	221.3	20.57	0.02	0	0	30.21
2025-10-06 12:00	7.431	9.18	37.05	4.181	1.542	229.3	127.9	772.8	230.8	25.14	0.03	0	0	30.21
2025-10-06 13:00	7.544	8.65	35.11	3.969	1.303	222.8	80	498	234.5	19.08	0.03	0	0	30.2
2025-10-06 14:00	8.08	9.85	31.63	4.655	1.289	176.3	108.7	680	248.5	24.2	0.01	0	0	30.19
2025-10-06 15:00	8.54	9.73	33.89	4.492	1.597	51.11	63.83	440.1	266.6	17.41	0.01	0	0	30.19
2025-10-06 16:00	8.09	9.51	33.06	3.675	1.298	121	56.84	401.7	251	16.3	0.02	0	0	30.19
2025-10-06 17:00	5.84	8.37	39.26	3.103	0.913	271.7	5.859	52.88	224.2	5.554	0.01	1	0	30.21
2025-10-06 18:00	3.883	5.869	42.98	3.054	1.085	244.7	1.003	5.269	216.7	1.237	0.02	1	0	30.22
2025-10-06 19:00	1.658	4.163	53.58	1.437	0.753	257.6	0.168	-4.796	212.5	-1.137	0.02	2	0	30.24
2025-10-06 20:00	0.63	1.688	56.28	1.47	0.744	261.4	0.462	-4.12	206.5	-2.351	0.01	2	0	30.25
2025-10-06 21:00	-0.002	0.646	55.03	1.111	0.604	258.9	0.664	-3.883	204.4	-3.219	0.01	2	0	30.25
2025-10-06 22:00	-0.058	0.264	54.94	1.421	0.795	253.8	0.743	-3.543	204.3	-3.849	0.01	2	0	30.26
2025-10-06 23:00	-0.028	0.379	53.82	1.846	0.861	240.8	0.64	-3.536	206.6	-4.288	0.01	2	0	30.26
2025-10-07 01:00	-0.269	0.646	54.52	1.878	0.821	232.5	0.399	-3.82	204.6	-5.126	0.01	2	0	30.27
2025-10-07 02:00	-0.579	-0.045	57.06	1.617	0.883	246.5	0.482	-3.755	203.6	-5.44	0.02	2	0	30.27
2025-10-07 03:00	-0.565	0.123	53.57	1.731	1.018	261.3	0.497	-3.442	202.2	-5.671	0.02	2	0	30.27
2025-10-07 04:00	-0.621	0.109	57.02	1.78	0.915	259	0.358	-3.515	202.5	-5.924	0.01	2	0	30.27
2025-10-07 05:00	-0.918	-0.565	58.71	1.748	0.655	251.9	0.486	-3.677	202.1	-6.276	0.02	2	0	30.28
2025-10-07 06:00	-1.211	-0.776	60.24	1.209	0.69	257.9	0.509	-3.414	203	-6.454	0.01	2	0	30.28
2025-10-07 07:00	-1.27	-0.437	60.61	1.552	0.909	259.1	1.877	8.37	204.5	-6.01	-0	1	0	30.29
2025-10-07 08:00	-0.565	5.263	39.13	2.695	0.85	264.5	30.94	143.9	208.8	-3.005	0.01	0	0	30.3
2025-10-07 09:00	5.25	7.066	35.54	4.328	1.129	57.84	83.3	434.8	214.2	6.404	0.02	0	0	30.31
2025-10-07 10:00	6.742	8.64	29.51	5.112	2.011	54.74	109.6	608.4	218.3	14.94	0.02	0	0	30.32
2025-10-07 11:00	8.13	9.76	28.4	5.357	1.773	41.39	127.8	728.8	221.8	22.22	0.03	0	0	30.31
2025-10-07 12:00	9.48	11.17	27.01	5.145	1.549	36.63	137.6	781.4	226.7	28.01	0.02	0	0	30.31