Evaporation　is　a　key　element　of　the　water　and　energy　cycle　and　is　essential　in　determining　the　spatial　and　temporal　variations　of　meteorological　elements.　In　particular,　evaporation　is　crucial　for　thoroughly　understanding　the　climate　variations　of　a　region.　In　this　study,　we　discussed　evaporation,　precipitation,　and　temperature　by　adopting　Linyi　City　in　Shandong　Province,　China,　which　is　an　important　agricultural　region,　as　a　research　case.　Linear　regression　analysis,　the　empirical　orthogonal　decomposition　function,　and　the　Morlet　wavelet　function　were　used　to　reveal　the　trends,　spatiotemporal　modes,　and　multi　-time　scale　characteristics　of　the　three　climate　factors　and　provide　a　theoretical　basis　for　the　efficient　use　of　climate　resources　in　the　future　development　of　regional　agriculture.　Results　showed　that　the　precipitation　(2.09　mm/a)　and　temperature　(0.04　celcius/a)　in　Linyi　City　exhibited　a　synchronous　growth　trend.　Conversely,　evaporation　(-6.47　mm/a)　showed　a　decreasing　trend　and　the　evaporation　paradox　because　of　the　considerable　decrease　in　evaporation　energy.　Regional　development　of　water　-consuming　agriculture　in　consideration　of　global　warming　is　a　key　point　for　improving　water　use　efficiency　in　Linyi　City.　In　terms　of　spatial　distribution,　precipitation　was　dominated　by　the　first　mode　wherein　low　precipitation　was　observed　at　the　early　stage,　and　high　precipitation　occurred　at　the　late　stage.　The　first　mode　was　supplemented　by　the　second　mode　wherein　an　inverse　phase　change　occurred　in　the　southeast　-northwest　direction.　Large　interannual　fluctuations　were　observed　only　in　Yinan　County.　Temperature　exhibited　a　pattern　of　warming　change　with　high　homogeneity.　Evaporation　demonstrated　obvious　heterogeneity　and　was　dominated　by　two　major　modes,　and　the　difference　in　evaporation　between　Junan　County　and　the　other　regions　of　Linyi　City　was　large.　Therefore,　the　local　regional　climate　changes　in　Yinan　and　Junan　should　be　given　attention.　All　three　meteorological　elements　showed　interannual　and　interdecadal　variations　in　the　short　(5　a),　medium　(16　a),　and　long　(25　a)　terms,　with　precipitation,　temperature,　and　evaporation　dominated　by　16　a,　24　a,　and　31　a,　respectively.　In　the　short-term　future,　the　regional　precipitation　and　temperature　in　Linyi　will　experience　decrements　that　are　above　the　multiyear　average,　and　evaporation　will　increase　to　above　the　multiyear　average.　Given　the　changing　trends　of　precipitation,　temperature,　and　evaporation,　urgent　requirements　for　the　regional　development　of　efficient　water　-saving　irrigation　and　the　promotion　of　digital　agriculture　should　be　proposed.