Table 1. Calculated chilling hours during DJF at the district level.

Value for a district represents the average chilling hours within the whole district and standard deviation(SD) of chilling hours.

Districts	1975–79	1980–84	1985–89	1990–94	1995–99	2000–04	2005–09	2009–14	SD	MK-Stat	Slope
Chamba	1722	1776	1771	1766	1771	1763	1761	1748	16	-12#	-2.5#
Kangra	1397	1422	1413	1405	1416	1401	1398	1397	9	-10+	-2.1+
Kinnaur	1191	1196	1174	1171	1184	1165	1154	1175	13	-14#	-3.7#
Kullu	1291	1333	1313	1309	1322	1306	1296	1278	16	-12#	-4.4#
Lahul & Spiti	1525	1644	1634	1629	1640	1627	1622	1611	36	-10+	-3.6+
Mandi	1190	1209	1191	1186	1199	1182	1174	1159	14	-18	-4.7
Shimla	1076	1066	1047	1042	1055	1038	1033	1035	14	-22	-5.2
Sirmaur	921	899	879	873	888	871	864	877	17	-18	-5.9
Solan	1087	1060	1042	1036	1051	1033	1027	1035	18	-20	-6.1

Mann-Kendall and Sen’s slope trend test results are significant at 99%, #significant at 90% and + significant at 80% confidence level.