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)
2026-01-17 07:00	-12.41	-11.69	61.74	4.851	1.639	304	-0.142	-1.258	217.2	-16.43	0.71	171	30.05
2026-01-17 08:00	-12.96	-12.28	62.9	9.2	1.9	335.3	10.97	12.56	191	-18.26	0.7	171	30.06
2026-01-17 09:00	-13.18	-12.53	63.72	7.579	2.375	83.4	78.34	103.1	202.4	-17.24	0.7	171	30.09
2026-01-17 10:00	-13.05	-11.72	63.03	6.958	2.097	105.4	274.5	313.2	163.8	-15.94	0.7	171	30.13
2026-01-17 11:00	-11.93	-10.87	51.52	8.58	2.744	86.8	394.1	480.8	153.2	-13.83	0.7	171	30.16
2026-01-17 12:00	-10.96	-8.78	39.38	12.41	3.096	93.5	382.9	568.4	152.7	-13.78	0.69	170	30.17
2026-01-17 13:00	-9.08	-7.74	35.91	10.54	2.631	105.1	479.9	587.1	155.6	-11.63	0.7	170	30.16
2026-01-17 14:00	-8.55	-7.457	38.58	6.746	2.31	105	429.3	540.9	158.3	-11.55	0.7	170	30.17
2026-01-17 15:00	-8.25	-7.54	40.71	4.426	1.42	125.4	319.2	433.3	160.7	-12.79	0.69	170	30.18
2026-01-17 16:00	-8.65	-8.06	42.12	4.541	1.526	97.5	33.71	98	163.1	-18.49	0.7	169	30.18
2026-01-17 17:00	-9.41	-8.19	45.45	3.626	0.982	110.7	16.44	16.58	165.5	-20.51	0.7	169	30.18
2026-01-17 18:00	-12	-9.4	50.73	3.169	0.773	127.2	1.421	-1.089	165.5	-23.12	0.7	170	30.19
2026-01-17 19:00	-12.04	-10.27	57.89	3.316	1.049	98.6	-0.142	-2.765	166.7	-22.27	0.7	170	30.2
2026-01-17 20:00	-12.37	-11.24	63.27	2.221	1.028	272.5	-0.305	-2.669	169.2	-23.55	0.7	170	30.21
2026-01-17 21:00	-11.62	-10.64	63.23	2.189	0.733	266.3	-0.168	-2.417	171.3	-24	0.7	170	30.21
2026-01-17 22:00	-11.02	-9.36	60.59	1.862	0.763	265.4	-0.09	-2.397	168.2	-24.11	0.7	170	30.22
2026-01-17 23:00	-11.48	-10.12	65.99	2.189	0.648	258.1	-0.576	-3.058	167.4	-24.75	0.7	170	30.23
2026-01-18 01:00	-9.91	-7.78	68.1	2.009	1.032	275.6	-0.561	-3.155	168.4	-22.65	0.7	170	30.22
2026-01-18 02:00	-10.92	-9.2	69.48	2.074	0.95	269.9	-0.404	-2.926	166.4	-23.33	0.69	171	30.23
2026-01-18 03:00	-10.86	-9.79	69.43	2.434	1.11	276.7	-0.31	-2.666	167.3	-22.71	0.7	171	30.23
2026-01-18 04:00	-11.06	-9.78	57.68	1.878	0.894	269.4	-0.232	-2.614	165.6	-23.86	0.69	171	30.22
2026-01-18 05:00	-10.36	-8.95	59.06	1.846	0.832	269.5	-0.218	-2.462	168.4	-24.13	0.69	171	30.22
2026-01-18 06:00	-9.69	-8.92	59.44	1.895	0.879	276.5	-0.382	-2.633	169.5	-23.39	0.69	171	30.22
2026-01-18 07:00	-10.02	-8.5	54.37	1.878	0.791	274.2	-0.338	-2.617	170.3	-23.45	0.69	171	30.22
2026-01-18 08:00	-9.81	-8.44	56.28	1.731	0.818	270.9	5.806	4.534	170.7	-23.33	0.69	171	30.22
2026-01-18 09:00	-9.46	-6.656	47.79	1.552	0.515	251.4	51.82	116.3	172.8	-23.5	0.69	171	30.22
2026-01-18 10:00	-6.63	-0.72	28.3	4.769	0.948	200.6	303.6	339.3	175.7	-15.15	0.68	171	30.23
2026-01-18 11:00	-1.043	0.04	29.23	5.488	1.638	223.7	391.3	478	179.2	-9.2	0.69	171	30.23
2026-01-18 12:00	-0.803	0.435	28.83	5.21	1.67	202.5	376.1	561.1	181.3	-9.22	0.69	171	30.22
2026-01-18 13:00	-0.143	0.884	29.88	5.129	1.617	213.3	473.5	582.1	181.7	-6.544	0.69	171	30.21
2026-01-18 14:00	0.195	0.969	35.53	5.635	1.454	207.2	425.5	538.5	181.3	-6.624	0.69	171	30.18
2026-01-18 15:00	-0.539	0.307	37.31	4.688	1.952	221.1	321.3	434.8	181.6	-8.23	0.7	170	30.17
2026-01-18 16:00	-2.381	-0.437	42.03	4.214	1.267	224.9	35.12	101.3	182.1	-14.52	0.7	170	30.17
2026-01-18 17:00	-3.463	-1.508	47.11	3.218	1.024	247	15.31	15.09	181.1	-16.74	0.69	170	30.16
2026-01-18 18:00	-4.939	-3.166	50.94	3.463	1.42	234	1.239	-1.609	179.3	-17.91	0.7	170	30.15
2026-01-18 19:00	-5.615	-4.32	54.49	2.793	1.055	259.5	-0.551	-3.51	183.9	-18.64	0.69	170	30.15
2026-01-18 20:00	-6.499	-5.503	56.86	1.731	0.81	263.1	-0.5	-3.036	187.2	-19.43	0.69	170	30.14
2026-01-18 21:00	-6.979	-6.234	59.61	1.535	0.681	263.6	-0.413	-2.737	189.8	-19.57	0.69	170	30.13
2026-01-18 22:00	-7.273	-6.614	59.58	1.356	0.724	267.9	-0.372	-2.446	194	-19.52	0.7	171	30.12
2026-01-18 23:00	-7.372	-6.429	58.61	1.895	0.761	260.8	-0.243	-2.445	188.8	-19.82	0.69	171	30.12
2026-01-19 01:00	-8.22	-7.385	59.83	2.352	0.77	279.3	-0.338	-2.507	180.3	-20.86	0.69	171	30.1
2026-01-19 02:00	-7.655	-4.969	61.32	3.773	0.998	262.4	-0.203	-2.46	181.1	-19.89	0.7	171	30.1
2026-01-19 03:00	-8.06	-7.289	63.42	2.107	0.728	266.1	-0.501	-2.875	184	-21.05	0.7	172	30.1
2026-01-19 04:00	-7.684	-6.36	63.18	2.924	0.926	265.5	-0.247	-2.557	180.5	-20.72	0.69	172	30.09
2026-01-19 05:00	-8.78	-6.515	68.09	2.025	0.695	285	-0.511	-3.057	177.5	-21.33	0.69	172	30.08
2026-01-19 06:00	-10.55	-8.81	74.68	1.519	0.423	262	-0.803	-3.641	170.3	-23.73	0.7	172	30.08
2026-01-19 07:00	-11.56	-10.38	78.33	1.29	0.492	265.5	-0.474	-2.886	169.7	-24.55	0.69	172	30.08
2026-01-19 08:00	-11.66	-10.52	78.38	2.058	0.839	278	6.218	5.241	167.9	-23.69	0.69	172	30.09
2026-01-19 09:00	-10.95	-8.18	69.01	2.417	0.678	43.57	53.27	132.1	167.9	-22.53	0.69	172	30.11
2026-01-19 10:00	-8.26	-7.26	65.74	3.773	1.517	92.2	305.2	349.2	167.5	-15.02	0.69	172	30.13
2026-01-19 11:00	-7.302	-5.404	60.58	3.446	1.668	89.5	393.9	481.8	164	-10.49	0.69	172	30.14
2026-01-19 12:00	-5.575	-4.883	51.25	4.312	1.943	87.4	382	568.4	164.5	-10.23	0.69	172	30.14
2026-01-19 13:00	-5.121	-4.053	41.22	4.573	1.752	95.2	476.6	591.3	162.2	-7.967	0.69	172	30.13
2026-01-19 14:00	-4.702	-3.858	37.27	4.214	1.543	84	428.9	549.5	159.7	-8.45	0.69	172	30.13
2026-01-19 15:00	-4.589	-3.772	37.95	4.181	1.509	92.9	326.1	448.1	153.9	-10.86	0.69	172	30.13
2026-01-19 16:00	-7.26	-4.122	54.22	3.577	1.303	93.6	37.76	116	155.3	-17.83	0.7	172	30.14
2026-01-19 17:00	-9.62	-7.177	48.86	1.535	0.703	271.1	16.9	16.63	149.5	-22.41	0.68	172	30.14
2026-01-19 18:00	-11.42	-9.61	49.01	2.156	0.703	267.9	1.915	-0.945	143	-25.24	0.69	172	30.15
2026-01-19 19:00	-12.53	-11.31	57.63	1.454	0.654	264.7	-0.465	-3.709	133.7	-27.28	0.69	172	30.16
2026-01-19 20:00	-12.73	-12.13	48.21	1.372	0.702	264.6	-0.398	-3.441	133	-28.5	0.69	172	30.17
2026-01-19 21:00	-13.24	-12.59	42.48	1.323	0.791	266.3	-0.444	-3.408	129.6	-29.1	0.69	172	30.18
2026-01-19 22:00	-13.22	-12.48	34.6	1.895	1.052	264	-0.336	-3.405	118.9	-29.94	0.69	173	30.18
2026-01-19 23:00	-12.87	-12.11	36.66	2.205	1.155	255.6	-0.398	-3.703	118.3	-29.73	0.68	173	30.18
2026-01-20 01:00	-13.45	-10.86	35.33	3.512	1.428	257.7	-0.401	-3.546	121.6	-28.85	0.68	173	30.19
2026-01-20 02:00	-14.04	-13.36	39.33	1.552	0.496	252.1	-0.815	-4.371	122.4	-31.31	0.69	174	30.19
2026-01-20 03:00	-14.14	-13.63	38.19	1.274	0.659	247.9	-0.348	-3.257	125.7	-31.8	0.69	174	30.19
2026-01-20 04:00	-13.94	-10.97	24.99	2.662	1.227	244.6	-0.017	-2.88	129.1	-29.97	0.69	174	30.18
2026-01-20 05:00	-11.37	-10.38	36.42	2.613	1.399	253.4	-0.483	-3.644	134.2	-28.41	0.68	174	30.18
2026-01-20 06:00	-12.13	-10.86	35	2.107	1.276	255.2	-0.595	-3.857	133.2	-28.51	0.68	174	30.17
2026-01-20 07:00	-11.85	-11.34	33.54	1.927	1.296	263	-0.348	-3.459	134.1	-28.02	0.68	174	30.17
2026-01-20 08:00	-11.51	-10.85	33.74	2.107	1.155	272.6	6.169	4.559	136.7	-27.69	0.69	174	30.18
2026-01-20 09:00	-11.12	-5.519	13.03	3.495	0.996	241.4	56.82	127	138.8	-26.81	0.69	174	30.18
2026-01-20 10:00	-5.615	-3.66	8.47	4.671	1.918	223.6	314.9	357.4	141.2	-16.95	0.69	174	30.18
2026-01-20 11:00	-3.703	-2.718	8.34	4.867	2.147	220.5	402.2	498.6	144.3	-12.87	0.69	174	30.19
2026-01-20 12:00	-2.76	-1.564	9.27	5.227	2.008	219.6	389.7	583	148.2	-12.6	0.68	173	30.18
2026-01-20 13:00	-1.831	-0.707	8.2	4.508	1.376	201.3	482.1	601.1	151.8	-9.67	0.68	173	30.16
2026-01-20 14:00	-1.27	-0.482	7.051	5.357	1.779	216.4	435.6	558.3	152.7	-9.98	0.68	173	30.15
2026-01-20 15:00	-1.719	-0.832	10.89	4.802	1.777	214.6	332.8	453.2	154.9	-11.68	0.68	173	30.14
2026-01-20 16:00	-3.281	-1.705	15.83	4.426	1.789	231.1	40.65	123.3	157.4	-17.39	0.7	172	30.13
2026-01-20 17:00	-4.702	-3.179	17.85	3.822	1.152	224	16.92	16.72	157.9	-20.79	0.69	172	30.13