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)
2026-01-04 02:00	-2.899	-2.282	69.29	2.172	0.795	240.4	-0.062	-2.034	282	-6.752	0.7	156	0	30.14
2026-01-04 03:00	-3.179	-1.732	61.96	4.247	0.888	236.6	0.021	-1.726	277.6	-6.988	0.71	156	0	30.13
2026-01-04 04:00	-2.085	-0.213	52.86	7.203	1.658	230.5	0.121	-3.838	216.8	-11.17	0.7	156	0	30.11
2026-01-04 05:00	-1.521	0.659	52.74	6.141	1.779	231.8	0.112	-4.453	200.4	-12.51	0.71	156	0	30.09
2026-01-04 06:00	-1.369	0.165	48.74	5.047	2.139	237.3	0.06	-4.501	196.2	-12.65	0.7	156	0	30.08
2026-01-04 07:00	-2.437	-0.394	53.96	3.642	1.482	227.9	-0.345	-4.636	193.1	-15.27	0.7	156	0	30.09
2026-01-04 08:00	-2.816	-1.804	48.24	3.822	1.285	231.6	5.428	2.082	185.7	-16.54	0.69	156	0	30.1
2026-01-04 09:00	-3.166	-1.227	46.89	4.835	1.082	230.9	54.3	86.7	181.4	-16.71	0.7	156	0	30.1
2026-01-04 10:00	-1.34	0.165	43.87	4.688	1.27	219.4	272.2	315.7	182.1	-10.96	0.69	156	0	30.11
2026-01-04 11:00	0.04	1.167	36.73	5.178	1.668	238.8	345.6	442.6	188.1	-7.663	0.7	156	0	30.12
2026-01-04 12:00	-0.282	1.941	41.89	5.063	1.567	247.5	203	315.1	182.2	-10.97	0.69	156	0	30.1
2026-01-04 13:00	-0.269	2.139	37.81	4.149	1.614	257.1	199.9	238.5	193.1	-10.72	0.69	156	0	30.08
2026-01-04 14:00	2.096	3.138	37.86	5.7	1.232	265.3	439.7	546.6	191	-5.569	0.69	156	0	30.07
2026-01-04 15:00	1.757	2.531	41.51	3.593	0.995	214.8	290.9	436.3	210.8	-6.599	0.68	156	0	30.06
2026-01-04 16:00	0.686	2.067	43.17	4.982	1.364	273.6	107.2	132.3	246.2	-7.336	0.69	156	0	30.06
2026-01-04 17:00	-1.326	0.716	54.77	2.793	1.011	250.9	43.02	52.74	237.4	-9.58	0.69	156	0	30.06
2026-01-04 18:00	-2.24	-1.313	56.55	2.434	1.035	243.4	0.473	-1.421	232.6	-11.59	0.68	156	0	30.06
2026-01-04 19:00	-2.408	-1.804	53.32	3.512	1.453	248.1	-0.237	-2.282	230.3	-11.35	0.69	156	0	30.06
2026-01-04 20:00	-3.11	-2.24	56.9	3.414	1.389	237.6	-0.3	-2.264	232.7	-11.74	0.69	156	0	30.06
2026-01-04 21:00	-3.519	-2.942	56.7	2.858	1.284	233.7	-0.299	-1.917	241.2	-11.25	0.69	156	0	30.06
2026-01-04 22:00	-4.603	-3.492	61.09	2.27	1.232	231.3	-0.458	-2.146	233.1	-12.57	0.68	156	0	30.05
2026-01-04 23:00	-5.065	-4.435	64.49	2.434	1.148	233.5	-0.358	-2.194	229	-13.69	0.68	156	0	30.05
2026-01-05 01:00	-5.671	-5.164	67.05	1.993	0.968	250	-0.195	-1.556	241.5	-12.79	0.68	156	0	30.04
2026-01-05 02:00	-5.417	-4.744	66.47	2.401	1.037	245.9	-0.124	-1.405	242.7	-12.5	0.69	156	0	30.03
2026-01-05 03:00	-5.868	-5.051	71.73	1.911	0.876	245.1	-0.302	-1.528	245.5	-12.47	0.68	156	0	30.03
2026-01-05 04:00	-6.205	-5.503	73.58	1.748	0.796	248.4	-0.251	-1.334	248.5	-12.16	0.69	156	0	30.02
2026-01-05 05:00	-5.826	-5.177	71.85	1.633	0.663	246.2	-0.039	-0.909	253.4	-11.74	0.68	156	0	30
2026-01-05 06:00	-5.447	-5.107	72.71	2.777	0.781	242.9	-0.061	-0.82	259.8	-10.64	0.69	156	0	29.99
2026-01-05 07:00	-5.417	-5.065	73.28	2.385	0.804	235.6	-0.149	-0.728	267.4	-9.55	0.69	156	0	29.99
2026-01-05 08:00	-5.631	-5.292	74.24	2.058	0.666	240.1	2.732	2.747	275.8	-8.61	0.68	156	0	30
2026-01-05 09:00	-5.783	-5.519	79.39	1.323	0.348	225.6	27.67	32.85	281.8	-8.13	0.68	156	0	30.01
2026-01-05 10:00	-5.743	-5.305	86.3	1.797	0.563	133.1	81.5	97.3	291.5	-7.238	0.68	156	0	30.01
2026-01-05 11:00	-5.348	-4.053	75.9	3.773	1.076	243.6	165.8	185.2	301.7	-6.35	0.68	156	0	30.02
2026-01-05 12:00	-4.688	-2.76	59.22	5.766	1.629	245.2	407.4	349	280.9	-5.316	0.69	156	0	30.03
2026-01-05 13:00	-3.97	-2.747	52.64	5.504	1.939	253.8	416.9	375.5	212.3	-7.555	0.69	156	0	30.02
2026-01-05 14:00	-3.858	-2.985	59.42	4.933	1.663	253.3	283.6	344.8	243.6	-7.209	0.69	156	0	30.01
2026-01-05 15:00	-4.52	-3.479	54.44	5.357	1.769	248	174.8	248.5	221.6	-9.74	0.69	156	0	30.01
2026-01-05 16:00	-4.939	-4.52	59.12	4.345	1.367	239.2	60.62	75.49	227	-11.79	0.69	156	0	30.03
2026-01-05 17:00	-5.7	-4.744	64.92	3.724	1.296	237.1	19.53	22.53	267	-8.83	0.68	156	0	30.04
2026-01-05 18:00	-6.29	-5.545	71.58	3.512	0.768	226.7	0.529	-0.56	249.1	-11.38	0.68	156	0	30.05
2026-01-05 19:00	-6.248	-5.951	70.23	4.443	1.299	234.5	0.011	-1.223	244.9	-11.06	0.68	156	0	30.06
2026-01-05 20:00	-6.881	-6.162	66.86	4.982	1.902	238.3	-0.186	-2.586	196.2	-14.78	0.69	156	0	30.07
2026-01-05 21:00	-7.385	-6.416	68.95	5.651	1.742	237.9	-0.225	-3.087	178.9	-17.57	0.68	156	0	30.07
2026-01-05 22:00	-7.372	-6.854	68.35	6.664	1.572	243.2	-0.067	-2.36	197.8	-16.57	0.69	156	0	30.09
2026-01-05 23:00	-7.54	-6.923	74.63	4.459	1.124	213.2	-0.169	-2.245	210	-15.87	0.69	156	0	30.09
2026-01-06 01:00	-7.711	-7.161	73.66	4.083	0.926	148	-0.095	-1.486	237.8	-13.45	0.69	156	0	30.09
2026-01-06 02:00	-8.05	-7.134	74.13	4.573	0.961	154.9	-0.102	-1.258	242.1	-12.7	0.68	156	0	30.09
2026-01-06 03:00	-9.03	-7.823	80.3	5.749	0.701	226	-0.41	-2.311	213.9	-17.36	0.68	156	0	30.1
2026-01-06 04:00	-10.75	-9.03	87	2.042	0.422	258.9	-0.595	-2.654	195.3	-20.91	0.69	156	0	30.1
2026-01-06 05:00	-11.87	-10.24	84.8	2.091	1.03	262	-0.439	-3.095	164.3	-24.3	0.68	157	0	30.09
2026-01-06 06:00	-12.56	-11.44	72.96	2.009	0.833	269.5	-0.442	-3.319	160	-25.72	0.68	156	0	30.09
2026-01-06 07:00	-12.87	-11.16	73.21	2.613	0.744	263.2	-0.064	-2.936	165.5	-26.01	0.69	156	0	30.1
2026-01-06 08:00	-12.31	-10.73	64.92	2.793	1.042	261.1	11.21	11.23	170	-24.1	0.68	157	0	30.11
2026-01-06 09:00	-11.62	-7.471	67.5	3.463	0.807	220.5	75.02	119	170.4	-22.12	0.68	157	0	30.11
2026-01-06 10:00	-7.596	-4.728	53.25	3.822	0.826	177.6	284.6	341.6	165.9	-16.96	0.67	157	0	30.12
2026-01-06 11:00	-5.361	-3.519	28.25	3.92	1.304	191.8	369.2	454.1	163.8	-12.52	0.67	157	0	30.13
2026-01-06 12:00	-3.842	-2.437	25.35	3.724	1.777	213.2	369.7	522.4	165.7	-13.34	0.67	157	0	30.13
2026-01-06 13:00	-2.886	-1.564	27.55	3.887	1.426	228.9	454.5	531.5	170.1	-10.55	0.67	157	0	30.11
2026-01-06 14:00	-2.042	-1.326	28.88	3.495	1.387	241.6	407.4	489.9	174.4	-10.51	0.67	156	0	30.09
2026-01-06 15:00	-2.632	-1.438	35.97	4.247	1.661	239.1	263.9	386.2	175.7	-12.39	0.68	156	37	30.09
2026-01-06 16:00	-4.87	-2.632	45.29	2.564	1.384	242.5	42.77	52.77	181.2	-17.63	0.67	156	0	30.09
2026-01-06 17:00	-6.587	-4.771	51.53	2.532	1.165	252.7	19.59	21.89	177.8	-19.47	0.67	156	0	30.09
2026-01-06 18:00	-8.1	-6.317	57.96	1.944	0.986	265.9	0.142	-2.556	178.6	-21.01	0.67	156	0	30.09
2026-01-06 19:00	-8.19	-7.754	68.96	1.617	0.911	255.8	-0.277	-2.484	192.3	-20.19	0.68	156	0	30.09
2026-01-06 20:00	-7.78	-6.768	64.99	1.601	0.878	236.9	-0.036	-1.364	224.5	-16.75	0.67	156	0	30.09
2026-01-06 21:00	-7.415	-6.686	62.33	2.058	1.023	255.5	-0.337	-1.959	214.4	-16.77	0.68	157	0	30.08
2026-01-06 22:00	-8.41	-7.217	62.69	2.679	1.161	261.1	-0.434	-2.823	187.6	-19.83	0.68	156	0	30.08
2026-01-06 23:00	-9.1	-6.894	61.83	3.348	1.01	262	-0.397	-2.974	175.1	-21.56	0.68	157	0	30.08
2026-01-07 01:00	-9.67	-8.08	47.82	2.27	0.668	247.4	-0.313	-1.725	212.7	-19.27	0.68	157	0	30.07
2026-01-07 02:00	-8.08	-4.221	38.69	3.822	1.664	195.2	0.398	-0.29	248.6	-13.52	0.67	157	0	30.06
2026-01-07 03:00	-5.332	-3.914	46.8	3.855	0.964	217.6	-0.464	-1.123	258.9	-12.13	0.67	157	0	30.05
2026-01-07 04:00	-6.346	-3.561	40.63	3.234	0.692	244.6	-0.4	-1.484	246.5	-13.54	0.67	157	0	30.03
2026-01-07 05:00	-6.429	-3.858	47.7	3.218	1.224	208.6	-0.585	-2.109	224.9	-14.88	0.67	157	0	30.02
2026-01-07 06:00	-7.74	-5.727	37.99	2.385	0.901	231.5	-0.628	-3.188	190.2	-19.65	0.67	157	0	30.01
2026-01-07 07:00	-8.27	-6.403	45.11	1.96	0.884	238.3	-0.765	-3.313	180.4	-21.96	0.67	157	0	30.01
2026-01-07 08:00	-8.44	-7.273	40.9	2.662	1.141	250.4	8.99	8.94	184.9	-21.08	0.67	157	0	30
2026-01-07 09:00	-7.583	-5.15	34.33	3.463	1.154	212.6	62.15	87.7	181.4	-19.76	0.66	157	0	30
2026-01-07 10:00	-5.206	-3.406	31.99	4.263	1.274	254.8	232.9	273	178.8	-15.16	0.66	157	0	30
2026-01-07 11:00	-3.703	-3.083	34.82	3.397	1.149	226.1	237.1	290.7	207.6	-12.18	0.67	157	0	30
2026-01-07 12:00	-3.097	-2.536	36.17	3.92	1.159	165.6	267.4	336.1	227.2	-10.15	0.66	157	0	29.98