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)
2026-10-11 01:00	3.701	3.952	94.6	4.361	1.122	266.4	0.573	-0.673	330.8	4.32	0.04	1	30.13
2026-10-11 02:00	3.757	4.064	93.3	3.904	0.864	252.1	0.645	-0.722	320.1	4.088	0.02	1	30.13
2026-10-11 03:00	3.968	4.406	91.6	6.141	1.479	263.3	0.792	-0.837	321.7	3.902	0.02	1	30.12
2026-10-11 04:00	4.334	4.713	92.1	4.492	1.727	241.2	0.718	-0.726	326.4	4.04	0.03	1	30.12
2026-10-11 05:00	4.08	4.531	94.6	6.288	1.416	236.9	0.665	-0.931	331.6	4.119	0.04	1	30.11
2026-10-11 06:00	4.051	4.278	94.7	5.504	1.746	239.9	0.613	-0.601	329.9	4.047	0.04	1	30.12
2026-10-11 07:00	4.136	4.924	92.6	5.325	2.005	231.3	2.018	9.71	326.2	4.222	0.04	1	30.12
2026-10-11 08:00	4.895	5.461	89.1	5.276	1.987	244.3	9.75	73.11	324.8	5.5	0.04	0	30.12
2026-10-11 09:00	5.18	5.824	86.9	4.851	1.662	244.4	17.56	140.4	310.9	6.875	0.03	0	30.14
2026-10-11 10:00	5.797	6.499	81	5.243	1.909	250.8	25.84	204.6	308.5	8.62	0.03	0	30.15
2026-10-11 11:00	5.151	6.15	85.1	5.276	1.629	255.6	13.4	110.8	327.7	6.904	0.02	1	30.15
2026-10-11 12:00	4.993	6.262	85.1	6.06	1.553	261	18.39	153	323.4	7.236	0.02	0	30.15
2026-10-11 13:00	3.575	5.543	90.8	4.818	1.466	252.2	12.47	106.5	329.2	6.769	0.04	0	30.13
2026-10-11 14:00	5.25	6.924	81.9	6.076	1.966	256.3	21.54	173.7	316.5	8.46	0.04	0	30.1
2026-10-11 15:00	5.501	7.106	88.6	5.929	1.871	252.1	8.6	66.06	333.9	7.115	0.04	1	30.1
2026-10-11 16:00	5.586	6.499	87.1	6.109	1.663	254.1	10.48	83.3	330	7.227	0.03	1	30.09
2026-10-11 17:00	5.138	5.768	86.5	6.207	1.788	246.3	3.229	17.91	332.8	5.873	0.03	1	30.09
2026-10-11 18:00	4.7	5.685	88.4	7.889	1.868	246.2	1.861	5.463	315	4.592	0.03	1	30.11
2026-10-11 19:00	4.024	4.7	90.7	4.753	1.507	248.2	1.113	-1.441	326.8	4.252	0.01	1	30.11
2026-10-11 20:00	3.813	4.67	79.26	5.521	2.002	242.3	1.443	-0.993	307.9	3.138	0	1	30.12
2026-10-11 21:00	3.602	4.713	86.4	5.864	1.51	241.7	1.273	-0.656	310.7	2.629	0.02	1	30.12
2026-10-11 22:00	2.545	3.589	93.9	4.688	1.206	250	0.843	-1.33	323.4	2.789	0.01	1	30.13
2026-10-11 23:00	2.587	3.375	85.3	4.492	1.754	243.4	1.046	-0.671	299.9	2.421	0.02	1	30.13
2026-10-12 01:00	2.545	3.009	82	4.018	1.433	239.7	0.786	-0.564	297.8	1.619	0.04	1	30.13
2026-10-12 02:00	2.587	2.857	80.2	3.773	1.466	245.4	0.577	-0.276	307	1.838	0.04	1	30.14
2026-10-12 03:00	2.363	2.913	81.9	3.953	1.389	230.2	0.502	-0.679	307.3	1.463	0.04	1	30.13
2026-10-12 04:00	2.251	2.545	79.69	4.034	1.295	236.8	0.523	-0.937	291.7	1.116	0.04	1	30.13
2026-10-12 05:00	2.067	2.515	81.1	5.276	1.297	239.2	0.64	-1.461	271.7	0.107	0.04	1	30.12
2026-10-12 06:00	1.84	2.195	84	4.867	1.008	229.1	0.398	-0.561	303	0.975	0.04	1	30.14
2026-10-12 07:00	1.856	2.152	81.3	3.985	1.107	233.5	1.403	7.736	303.9	1.021	0.03	1	30.15
2026-10-12 08:00	1.8	2.195	79.2	3.299	1.089	249.2	7.839	60.52	304.5	2.111	0.03	1	30.16
2026-10-12 09:00	1.559	2.251	83.4	3.561	1.267	250.8	11.41	93.7	304.8	2.424	0.03	1	30.17
2026-10-12 10:00	1.77	3.49	77.1	3.659	0.983	251.5	24.45	197.1	306.9	4.97	0.05	0	30.17
2026-10-12 11:00	3.461	5.824	67.28	5.145	1.249	257.4	82.7	598	293.5	14.21	0.05	0	30.16
2026-10-12 12:00	4.924	6.63	74.67	5.259	1.565	117.4	83.5	576.5	287.7	16.39	0.04	0	30.15
2026-10-12 13:00	2.545	4.937	93.4	4.622	1.38	253.8	22.34	188.2	323.9	9.52	0.05	1	30.15
2026-10-12 14:00	2.419	3.445	89	3.757	1.311	251.5	19.64	167.3	316.8	8.8	0.04	1	30.14
2026-10-12 15:00	3.29	3.939	87	4.492	1.311	259.4	11.77	96.5	316.4	6.97	0.03	2	30.13
2026-10-12 16:00	3.052	3.77	87.6	3.626	1.128	242	8.09	65.08	318.7	5.142	0.03	1	30.12
2026-10-12 17:00	3.431	3.728	87.6	3.887	1.281	237.5	2.862	17.32	320.3	4.583	0.02	1	30.12
2026-10-12 18:00	3.519	4.008	83.9	4.263	1.578	256.9	1.248	2.321	313.9	3.724	0.02	1	30.12
2026-10-12 19:00	2.841	3.939	80.5	5.308	1.528	240.3	1.007	-1.65	312.8	2.59	0.03	1	30.12
2026-10-12 20:00	3.519	4.35	76.98	10.39	1.733	261.1	1.037	-0.43	306.3	2.349	0.04	1	30.12
2026-10-12 21:00	3.319	4.192	81.4	5.798	1.603	259.7	0.494	-0.783	313.1	2.142	0.04	2	30.11
2026-10-12 22:00	1.813	3.319	92.3	4.394	1.286	237.1	0.641	-1.941	319.8	1.065	0.04	2	30.1
2026-10-12 23:00	1.391	2.195	90.4	5.21	1.472	253.8	0.825	-0.705	316.5	0.403	0.02	3	30.1
2026-10-13 01:00	1.645	2.139	88.9	6.942	2.088	257.3	0.796	-0.565	314.4	0.249	0.03	3	30.09
2026-10-13 02:00	1.052	1.714	92.6	5.472	1.88	249.3	0.914	-0.807	316.7	-0.175	0.03	6	30.07
2026-10-13 03:00	0.646	1.279	95.9	4.541	1.307	246.9	0.754	-0.901	315.5	-0.227	0.03	8	30.07
2026-10-13 04:00	0.534	0.814	96.2	4.149	1.296	240.3	0.712	-0.87	314.7	-0.197	0.03	10	30.07
2026-10-13 05:00	0.195	0.814	87.4	4.279	1.393	245.1	0.814	-1.032	290.6	-0.281	0.05	10	30.08
2026-10-13 06:00	-0.552	0.208	83.3	5.684	1.206	250.5	0.675	-2.175	270.3	-0.721	0.05	9	30.1
2026-10-13 07:00	-1	-0.437	88.9	2.744	0.71	245.9	4.566	6.801	292	-0.556	0.06	9	30.11
2026-10-13 08:00	-0.747	-0.482	90.8	2.679	0.944	237.8	28.33	61.42	289.1	-0.399	0.06	9	30.11
2026-10-13 09:00	-0.539	-0.015	93	4.149	1.212	254.4	58.29	118.5	301.6	-0.158	0.06	8	30.12
2026-10-13 10:00	-0.157	0.208	97.2	4.051	1.309	258.3	67.75	116.2	313.3	-0.039	0.05	11	30.11
2026-10-13 11:00	-0.028	0.828	96.4	4.149	1.612	246.1	128.1	176.8	314.4	0.038	0.06	14	30.11
2026-10-13 12:00	0.534	1.971	90.4	5.08	1.561	248.4	226.3	428.6	293	0.057	0.05	13	30.12
2026-10-13 13:00	1.813	2.828	93	4.557	1.306	244.1	137.5	458.8	302.1	1.047	0.04	11	30.11
2026-10-13 14:00	1.757	2.363	95	4.41	1.439	249.9	42.72	248.5	319.5	2.998	0.04	10	30.1
2026-10-13 15:00	2.04	3.095	93.7	3.691	1.091	249.3	25.62	208.4	310.6	4.896	0.06	8	30.1
2026-10-13 16:00	0.798	3.234	95.4	2.336	0.538	254.1	7.475	63.42	318.3	3.469	0.05	8	30.11
2026-10-13 17:00	0.251	0.857	97.8	1.764	0.157	285	5.797	22.41	315.8	-0.088	0.05	11	30.12
2026-10-13 18:00	0.222	0.702	97.7	0	0	213	2.146	1.959	315.7	-0.119	0.05	13	30.11
2026-10-13 19:00	0.35	0.673	98.1	2.613	0.435	246.8	0.59	-0.822	315.7	-0.153	0.06	16	30.11
2026-10-13 20:00	0.547	1.672	95.1	4.083	1.271	245.8	0.899	-1.9	313.5	-0.245	0.05	17	30.11
2026-10-13 21:00	0.392	1.447	97.5	4.051	0.622	234.8	0.664	-1.6	315.4	-0.285	0.05	23	30.12
2026-10-13 22:00	0.379	0.729	97.3	1.323	0.017	217.4	0.601	-0.798	315.3	-0.149	0.06	26	30.12
2026-10-13 23:00	0.673	1.18	94	4.051	0.807	248.7	0.963	-1.261	314.4	-0.234	0.07	25	30.14
2026-10-14 01:00	0.673	0.996	95.8	3.61	1.054	238.6	0.73	-1.177	315.5	-0.203	0.05	25	30.11
2026-10-14 02:00	0.208	0.785	98.3	2.107	0.303	253	0.243	-0.772	315.6	-0.191	0.05	25	30.09
2026-10-14 03:00	0.067	0.251	99.1	0	0	205.3	0.1	-0.24	315.7	-0.116	0.07	29	30.08
2026-10-14 04:00	0.096	0.222	99.4	0	0	206.9	0.187	-0.21	315.6	-0.095	0.09	33	30.07
2026-10-14 05:00	0.067	0.195	99.3	0	0	245.8	0.33	-0.25	315.6	-0.146	0.1	35	30.07
2026-10-14 06:00	0.011	0.152	99.5	0	0	243.2	0.323	-0.238	315.6	-0.271	0.12	36	30.06
2026-10-14 07:00	-0.352	0.123	97.5	0	0	249.4	6.774	2.173	315.8	-0.698	0.14	36	30.05
2026-10-14 08:00	-0.579	-0.312	99.1	0	0	263.9	21.43	7.908	315.8	-0.857	0.15	39	30.04
2026-10-14 09:00	-1.182	-0.496	99.4	0	0	270.4	67.87	22.7	315.8	-1.07	0.17	43	30.03
2026-10-14 10:00	-2.029	-1.099	97.9	0	0	277.4	135.5	42.99	315.6	-2.044	0.18	43	30.04
2026-10-14 11:00	-2.282	-1.676	95.2	0	0	260.2	361.6	106.2	315.9	-2.321	0.2	43	30.03