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)
2026-04-22 15:00	6.192	6.993	22.13	9.07	2.317	241.3	255.4	457.2	255.4	-2.727	0.37	174	30.07
2026-04-22 16:00	6.235	7.122	23.24	5.766	1.904	251.5	217.7	400.5	254.4	-2.637	0.37	173	30.05
2026-04-22 17:00	5.586	6.515	24.69	4.328	1.479	251.2	134.4	247.2	261.9	-2.646	0.37	173	30.04
2026-04-22 18:00	4.518	5.6	28	8.23	2.142	245.1	68.39	121.8	261.9	-3.131	0.37	173	30.04
2026-04-22 19:00	3.826	4.545	23.72	7.726	1.997	250.5	10.97	17.89	263	-3.731	0.36	173	30.03
2026-04-22 20:00	3.319	3.939	25.17	5.178	1.872	243.2	-0.315	-1.981	267.8	-4.255	0.36	174	30.03
2026-04-22 21:00	2.884	3.375	28.34	5.782	1.965	241.6	-0.354	-1.608	277.2	-4.153	0.36	174	30.04
2026-04-22 22:00	2.195	2.927	30.26	4.916	1.781	250.6	-0.308	-2.901	233.8	-5.778	0.36	176	30.03
2026-04-22 23:00	1.18	2.264	30.25	5.341	1.927	244.1	-0.232	-3.774	202.2	-7.622	0.36	175	30.01
2026-04-23 01:00	-2.183	0.083	43.48	3.985	1.449	252.2	-0.29	-4.473	183.8	-10.35	0.36	176	30
2026-04-23 02:00	-2.872	-2.098	47.8	3.381	1.233	259.1	0.043	-3.902	182.2	-11.05	0.36	178	29.99
2026-04-23 03:00	-4.165	-2.859	54.89	3.724	0.899	260.8	0.088	-3.982	180.1	-12.21	0.36	179	29.98
2026-04-23 04:00	-6.485	-4.165	70.3	3.283	0.572	129.2	-0.114	-4.465	177.1	-13.37	0.36	182	29.99
2026-04-23 05:00	-7.302	-6.485	66.7	1.78	0.313	282.9	0.279	-3.776	176.1	-14.82	0.37	185	29.99
2026-04-23 06:00	-6.854	-6.106	63.85	2.27	0.635	279.3	5.699	4.758	175.4	-14.89	0.36	186	29.99
2026-04-23 07:00	-6.768	-3.97	59.83	4.051	0.959	88	135.6	190.4	175.9	-11.81	0.36	181	29.99
2026-04-23 08:00	-4.672	-2.76	48.85	4.459	1.647	80.3	282.5	431.6	180.3	-5.929	0.35	174	29.99
2026-04-23 09:00	-3.252	-1.481	48.01	4.688	1.558	231.5	397.8	674.9	230.9	-1.198	0.36	167	29.99
2026-04-23 10:00	-3.449	-1.9	46.2	5.7	1.536	197.5	306.2	511.7	247.3	-1.298	0.35	166	30
2026-04-23 11:00	-2.029	-0.902	41.26	6.174	2.183	215.3	549.4	969	209	-0.911	0.35	167	30.01
2026-04-23 12:00	-1.284	-0.157	44.76	8.13	2.617	211.7	590	1075	213.6	-0.94	0.35	168	30.01
2026-04-23 13:00	-1.099	0.152	36.97	6.55	2.561	227.3	571	1062	191.9	-1.253	0.35	168	30.01
2026-04-23 14:00	-0.312	0.926	30.15	5.798	2.107	224.1	522.5	995	185.8	-1.422	0.34	167	30.01
2026-04-23 15:00	0.379	1.322	28.06	6.729	2.29	218.4	447.1	871	182.7	-2.004	0.34	165	30.01
2026-04-23 16:00	1.025	1.602	28.04	5.504	2.025	219.6	340.8	697.8	182.6	-2.51	0.34	164	30.01
2026-04-23 17:00	0.742	1.348	27.79	7.154	2.202	222.1	226	489.2	183.2	-3.448	0.34	163	30.01
2026-04-23 18:00	-0.803	1.21	27.2	6.305	1.546	219.1	49.53	143.7	180.6	-6.381	0.34	164	30.02
2026-04-23 19:00	-1.986	-0.579	31.96	4.639	1.313	221.4	7.876	8.42	178.8	-8.37	0.34	164	30.03
2026-04-23 20:00	-2.915	-1.382	35.13	3.659	0.61	291.7	0.184	-4.448	178.5	-9.99	0.34	164	30.03
2026-04-23 21:00	-3.548	-2.085	37.73	3.169	0.782	247.9	0.319	-3.953	179.1	-10.88	0.34	165	30.05
2026-04-23 22:00	-4.589	-2.787	50.26	2.14	0.612	247.5	0.129	-4.053	178.4	-11.92	0.34	168	30.05
2026-04-23 23:00	-5.559	-4.333	54.81	1.388	0.483	264.1	0.166	-3.915	175.7	-13.14	0.34	171	30.05
2026-04-24 01:00	-6.923	-6.587	63.44	1.143	0.508	269.1	0.414	-3.226	171.1	-15.03	0.34	177	30.05
2026-04-24 02:00	-7.74	-6.824	65.87	1.013	0.541	271.5	0.258	-3.259	167.2	-15.7	0.34	179	30.04
2026-04-24 03:00	-7.78	-7.217	65.83	1.258	0.446	267	0.319	-3.452	161.6	-16.78	0.34	181	30.03
2026-04-24 04:00	-9.57	-7.767	74.07	0.621	0.061	260.2	0.031	-3.991	159.4	-18	0.34	182	30.03
2026-04-24 05:00	-9.23	-7.839	61.47	1.535	0.62	260.8	0.773	-2.934	156.5	-18.03	0.34	183	30.03
2026-04-24 06:00	-8.33	-7.684	58.74	2.009	0.978	256.4	6.168	5.467	151.9	-17.93	0.34	184	30.03
2026-04-24 07:00	-8.29	-3.746	45.32	2.973	0.978	164.6	140.8	202.4	152.3	-13.25	0.34	177	30.03
2026-04-24 08:00	-3.842	-1.284	36.09	3.724	1.265	120.4	285.9	443.7	154.2	-7.545	0.34	166	30.04
2026-04-24 09:00	-1.396	1.009	19.68	4.459	1.419	189	399.7	661.6	160.4	-3.461	0.33	154	30.03
2026-04-24 10:00	0.828	2.67	21.05	4.818	1.776	234.8	476.5	839	168.4	-2.293	0.34	147	30.03
2026-04-24 11:00	1.997	3.332	25.34	5.945	1.933	237.9	521.4	964	181.2	-2.041	0.33	147	30.02
2026-04-24 12:00	3.039	4.278	26.17	5.929	1.951	252.7	515	977	198.9	-1.879	0.32	152	30.01
2026-04-24 13:00	3.533	5.22	24.93	5.112	1.676	250.7	492.6	953	210.7	-1.891	0.31	154	30
2026-04-24 14:00	4.248	5.052	24.95	4.933	1.462	259.1	322.8	621	237.6	-2.166	0.3	153	29.99
2026-04-24 15:00	4.545	5.6	23.16	6.125	1.542	252.9	345.8	690	236.1	-2.094	0.3	152	29.98
2026-04-24 16:00	4.107	5.613	23.6	5.913	1.771	251.3	244.9	499.9	235.9	-2.391	0.31	151	29.97
2026-04-24 17:00	3.813	5.095	22.57	4.557	1.399	243.7	169.8	354.3	231.4	-2.604	0.3	151	29.97
2026-04-24 18:00	2.87	3.939	24.35	5.243	1.496	249.9	67.74	137.5	235	-3.564	0.3	151	29.98
2026-04-24 19:00	1.784	2.884	29.22	4.965	1.359	234.9	12.43	20.63	239.5	-4.493	0.3	151	29.98
2026-04-24 20:00	0.913	1.896	36.12	4.737	1.37	247	-0.041	-2.973	227.7	-5.465	0.3	152	29.98
2026-04-24 21:00	0.011	1.18	37.35	3.887	1.376	241	-0.07	-3.897	201.6	-7.2	0.3	153	29.99
2026-04-24 22:00	-0.974	0.165	37.33	3.316	1.182	237.1	-0.071	-3.666	208.4	-7.908	0.3	154	29.99
2026-04-24 23:00	-0.608	1.095	33.91	3.887	1.605	245.8	0.161	-2.228	233.5	-7.069	0.3	155	29.99
2026-04-25 01:00	0.152	0.63	34.62	6.141	1.914	238.5	-0.272	-1.286	275.2	-5.61	0.3	155	29.98
2026-04-25 02:00	-1.551	0.195	55.12	4.328	1.337	223.4	-0.432	-1.404	279.9	-5.398	0.3	155	29.98
2026-04-25 03:00	-3.66	-1.537	83.7	3.626	0.97	203.9	-0.292	-1.129	290.3	-4.517	0.3	155	29.98
2026-04-25 04:00	-3.954	-3.66	86.3	2.303	0.615	207	-0.108	-1.855	296.9	-5.772	0.3	155	29.99
2026-04-25 05:00	-4.122	-3.66	78.83	2.744	0.595	151.2	0.162	-2.511	293.4	-7.397	0.3	156	29.99
2026-04-25 06:00	-3.858	-2.928	70.98	2.042	0.586	235.5	9.91	10.84	294.9	-6.557	0.3	156	29.98
2026-04-25 07:00	-2.971	-1.844	53.68	3.626	1.28	209.6	61.41	80.7	299.1	-7.056	0.3	155	29.99
2026-04-25 08:00	-1.86	0.406	44.65	4.067	1.35	187.2	227	304.6	274.3	-5.864	0.29	149	30
2026-04-25 09:00	0.264	1.714	40.18	5.994	1.565	218.8	396.5	596	223.1	-3.502	0.29	146	30
2026-04-25 10:00	1.503	2.334	39.34	6.599	1.804	201.5	495.9	798.7	218.6	-2.59	0.29	147	30
2026-04-25 11:00	1.757	3.348	35.81	5.88	1.898	249.8	498.9	867	220.5	-2.05	0.27	148	30
2026-04-25 12:00	3.194	4.475	31.75	7.464	1.965	227.8	565.1	1054	221.3	-1.73	0.27	148	29.99
2026-04-25 13:00	3.995	5.007	31.27	6.06	2.089	251.1	500.5	975	230	-1.753	0.27	145	29.98
2026-04-25 14:00	4.192	4.98	31.56	6.043	1.967	252.4	370.4	734	245.7	-1.782	0.26	142	29.98
2026-04-25 15:00	3.77	4.39	33.41	6.582	1.976	256.7	190.5	359.6	278	-1.831	0.25	141	29.98
2026-04-25 16:00	3.602	4.262	33.28	5.88	1.871	255.3	143	270.8	270.7	-1.944	0.26	141	29.97
2026-04-25 17:00	3.332	4.206	35.18	6.06	1.829	255.5	78.59	143.9	280.9	-2.181	0.26	141	29.97
2026-04-25 18:00	2.515	3.445	41.58	7.317	2.409	254.7	47.01	85.3	282.7	-2.44	0.26	141	29.97
2026-04-25 19:00	1.602	2.601	47.66	5.521	1.891	252.8	8.62	14.75	286.7	-2.576	0.25	141	29.97
2026-04-25 20:00	0.659	1.602	57.54	6.256	1.715	256.5	-0.119	-1.587	272.8	-3.045	0.25	141	29.97
2026-04-25 21:00	-1.748	0.686	88.8	3.74	1.056	265.6	-0.326	-1.341	298.1	-2.046	0.26	142	29.98
2026-04-25 22:00	-2.042	-1.649	92.6	4.508	1.053	262.3	0.142	-0.628	305.6	-1.802	0.27	143	29.97
2026-04-25 23:00	-2.24	-1.999	91.2	4.312	1.358	256.4	0.125	-0.638	305.7	-2.56	0.27	144	29.96
2026-04-26 01:00	-2.747	-2.282	92.2	5.112	1.37	259	0.068	-0.392	296.9	-3.042	0.31	146	29.94
2026-04-26 02:00	-2.76	-2.549	90.4	4.426	1.394	240.6	0.14	-0.28	295.6	-3.221	0.31	147	29.94